[Tracking] Fix and enable LTP tests categorized as "Test Issues - Test Bugs"

[hukoyu]

When failing LTP tests categorized, they were categorized into 4 categories:

1. Test Issues - Test Bugs:

• There is bug in the test code such as non-existing folder or user and so on
• Fix bug in test code and enable test

2. Test Issue – Test Using Not-Supported Feature

• Testing supported feature (syscall) in sgx-lkl but in the test code a not-supported feature is used
• Refactor test code without using not-supported feature and enable test

3. Testing Not Supported Feature

• Sgx-lkl will not support these features due to limitations such as single process, single user
• We will disable these tests. They are not applicable since sgx-lkl doesn’t implement these features

4. SGX-LKL Bug

• Tests are  legit and failures are genuine. Tests failing due to incomplete implementation or bug in sgx-lkl implementation.
• Fix bug in sgx-lkl and enable test

Currently there are 30 tests in "Test Issues - Test Bugs" category that we will track with this issue

[hukoyu]

Here is the list of syscalls for this category: (Count: 30)
Update Date: July 28, 2020

sigrelse01
sighold02
sigaction01
rt_sigsuspend01
ftruncate04
gethostid01
fcntl14
fcntl15
fcntl17
fcntl19
fcntl20
fcntl21
chroot02
times03
symlink02
accept02
openat02
access02
mmap05
mmap10
mmap13
chmod03
chmod04
semctl02
semop02
shmctl02
symlink03
truncate03
utime02
utime05