Track CM's android_build

Change-Id: I7b291eb28506b9913e77e30bf04ba74597fbf74f
Update README for cm-10.2

Change-Id: Ica80a512a667cc0adc5026dec31736bf5d6e28c4
default: Add Focal repos to the manifest

Change-Id: I5fa821d8541d10a553a0df94fe49dd18f24f8c0b
Delete qcom/camera (cm doesn't have it so it's probably not needed anymore?)

Change-Id: I4843676ba43ea754cb732481cda6bc5c7912ea7c
Merge branch 'cm-10.2' of https://github.com/PAC-man/android into PAC4.3