s4-common: Create firmware symlinks at build time

Change-Id: I25af751f22ded9d438b304cbe079acef9f0ed930
s4-common: disable secure discard for ext4 wipes

Users are reporting really long wipe times in recovery on ext4
partitions.

Change-Id: I2f326622917266e9f43ea12da85889ca843008ca
s4-common: CameraWrapper: turn off face detect key

This fixes CYAN-4139.

Change-Id: I852edf0e6bdda3f6055320e6f8da414d35579174
s4-common: Don't assign garbage groups

Change-Id: Idbca017ef2eb2a2cf5fe85304f0d4591e09e4c09
s4-common: Remove unused init entries and scripts

Change-Id: I5e56d11186ff5524db9880004ddc361b99ad07bf
s4-common: Move directory creation to post-fs-data

Change-Id: I4d765af371b2ada5bbab16aa2e336637714b8863
s4-common: Use wcnss_service to initialize wifi

Change-Id: Ia98a0048f3c7b7fee29d2df34b5fa1b128169ecb
s4-common: remap capacitive keys in CWM

Back = Back (unchanged)
Home = Down
App Switch = Select

Change-Id: I708b352eeed87e826dd7af0958356e09e1283b44
s4-common: Move custom recovery font to device trees

Change-Id: I52b036ba728c4a4c39e1621db76c681ee3c6fee4
s4-common: update wcnss config from mint 9.2.A.0.295

Change-Id: Idce33c90da49e372574604aed04fceffdb2d0e99