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

This reverts commit 61cb1ca93a95739bbb83a5ecbd3b295416c7eab1.
Revert "projects/*: enable in-kernel RTL8192CU driver"

This reverts commit 8484e30e6a441ea834d79efa407a7a81abd44b10.

Conflicts:
	projects/RPi/options