Revert "projects/RPi/linux: fix kernel config"

This reverts commit e3ea5ec4468fccd9189ff13bf6a59398d8572dea.
Revert "projects/*: enable in-kernel RTL8192CU driver"

This reverts commit 2c595ceef98ecd693fd39f29a6a82887c2f72dac.

Conflicts:
	projects/RPi/options