Add BR902 and Kazakh frequencies to docs.

Fixes meshtastic/firmware#7399

Author: fifieldt

docs/blocks/_lora-regions.mdx

@@ -18,6 +18,9 @@
 |  `MY_433`   |     Malaysia 433MHz     |     433.0 - 435.0     |      100       |        20         |
 |  `MY_919`   |     Malaysia 919MHz     |     919.0 - 924.0     |      100       |        27         |
 |  `SG_923`   |    Singapore 923MHz     |     917.0 - 925.0     |      100       |        20         |
+|  `KZ_433`   |    Kazakhstan 433 MHz   |   433.075 - 434.775   |      100       |        10         |
+|  `KZ_863`   |    Kazakhstan 863 MHz   |     863.0 - 868.0     |      100       |        30         |
+|  `BR_902`   |    Brazil 902MHz        |     902.0 - 907.5     |      100       |        30         |
 |  `LORA_24`  | 2.4 GHz band worldwide  |    2400.0 - 2483.5    |      100       |        10         |
 
 :::info

docs/configuration/radio/lora.mdx

@@ -220,7 +220,7 @@ LoRa config commands are available in the python CLI. Example commands are below
 | :-------------------------: | :-------------------------------------------------------------------------------------------------------------------------------------------------------: | :---------: |
 |      lora.modem_preset      |                    `LONG_FAST`, `LONG_SLOW`, `VERY_LONG_SLOW`, `MEDIUM_SLOW`, `MEDIUM_FAST`, `SHORT_SLOW`, `SHORT_FAST`, `SHORT_TURBO`                    | `LONG_FAST` |
 |       lora.use_preset       |                                                                      `false`, `true`                                                                      |   `false`   |
-|         lora.region         | `UNSET`, `US`, `EU_433`, `EU_868`, `CN`, `JP`, `ANZ`, `KR`, `TW`, `RU` ,`IN`, `NZ_865`, `TH`, `LORA_24`, `UA_433`, `UA_868`, `MY_433`, `MY_919`, `SG_923` |   `UNSET`   |
+|         lora.region         | `UNSET`, `US`, `EU_433`, `EU_868`, `CN`, `JP`, `ANZ`, `KR`, `TW`, `RU` ,`IN`, `NZ_865`, `TH`, `LORA_24`, `UA_433`, `UA_868`, `MY_433`, `MY_919`, `SG_923`, `KZ_433`, `KZ_863`, `BR_902`, `NP_865` |   `UNSET`   |
 |       lora.bandwidth        |                                                              `31`, `62`, `125`, `250`, `500`                                                              |    `250`    |
 |     lora.spread_factor      |                                                              `7`, `8`, `9`, `10`, `11`, `12`                                                              |    `12`     |
 |      lora.coding_rate       |                                                                    `5`, `6`, `7`, `8`                                                                     |     `8`     |

docs/configuration/region-by-country.mdx

@@ -24,7 +24,7 @@ If you'd like to contribute information for your country, click the "Edit this p
 | ------------------ | ------------------ | --------------------------------------------------------------------------------------------------- |
 | Belgium            | EU_868<br />EU_433 |                                                                                                     |
 | Bosnia-Herzegowina | EU_868<br />EU_433 |                                                                                                     |
-| Brazil             | ANZ                | [Brazilian Regulations](https://www.gov.br/anatel/pt-br/regulado/radiofrequencia/radiacao-restrita) |
+| Brazil             | ANZ<br />BR_902    | [Brazilian Regulations](https://www.gov.br/anatel/pt-br/regulado/radiofrequencia/radiacao-restrita) |
 | Bulgaria           | EU_868<br />EU_433 |                                                                                                     |
 
 ### C
@@ -88,6 +88,7 @@ If you'd like to contribute information for your country, click the "Edit this p
 
 | Country | LoRa Region | Regulatory document                                                         |
 | ------- | ----------- | --------------------------------------------------------------------------- |
+| Kazakhstan| KZ_433<br />KZ_863 | [Kazakh Regulations](https://www.gov.kz/memleket/entities/mdai/press/article/details/6128) |
 | Korea   | KR          | [Korean Regulations](https://qiita.com/ammo0613/items/d952154f1195b64dc29f) |
 
 ### L