ramsidk: Clean up USB configuration

Don't force mount sdcard in mass_storage mode
ramdisk: Fix USB configuration

- Remove unused ACM on MTP and PTP
- Fix RNDIS configuration
Revert "Use fade screen off animation"

This reverts commit 5e10288ae598807491be21daa7598ebc038feb26.
Resort kernel strings
Enable Samsung STK
SELinux: Add policy

Allowed bcm_security