adb and offmode charge now works in MT2L03 twrp

I play around the configs, and fixed following:

1. adb now worked.
2. Offmod charge is working now. ( looks like ro.boot.mode=hwcharge is the flag and I use it to start charge)
3. Fix pixel format. Twrp GUI was yellow color, now is blue, I think this is the correct one?
(an early commit still has incorrect comments "fixed mtp", it should be "adb")

Mass Storage and MTP still not working, it is now just like plug phone but not enable mass storage/mtp yet while it is in Android OS, PC detects the phone and show 2 disk/portable device, but can not see the content.