fix(lvgl.mk): fix vg_lite_tvg.cpp not compiling (lvgl#5435)

Signed-off-by: pengyiqiang <[email protected]>
Co-authored-by: pengyiqiang <[email protected]>

Author: FASTSHIFT

lvgl.mk

@@ -5,7 +5,7 @@ CSRCS += $(shell find $(LVGL_PATH)/src -type f -name '*.c')
 CSRCS += $(shell find $(LVGL_PATH)/demos -type f -name '*.c')
 CSRCS += $(shell find $(LVGL_PATH)/examples -type f -name '*.c')
 CXXEXT := .cpp
-CXXSRCS += $(shell find $(LVGL_PATH)/src/libs/thorvg -type f -name '*${CXXEXT}')
+CXXSRCS += $(shell find $(LVGL_PATH)/src -type f -name '*${CXXEXT}')
 
 AFLAGS += "-I$(LVGL_PATH)"
 CFLAGS += "-I$(LVGL_PATH)"