Add the test instructions

1) Add test instructions.
2) Raise the baseline 5G80 SCC speed target to 40MB/s.
3) Enable BLE test in non-Quick-Start test.
4) Shorten the name of test config file and cuj test.

Bug: 333764163
Test: compile
Change-Id: Ic9b21d3876fbc5d75dc38268547597d7e86a4bdc
7 files changed