hammerhead: Add OmniTorch Overlay

PatchSet2: Add values to init.hammerhead.rc (referenced CM)

Change-Id: I1c9db344a879c37a695bb3a3d5eab6772f9beb3d
Enable frandom

Change-Id: I82c1af5a39b358b7d989c6ab92160051a9686f0b
Use Mackay defconfig

Change-Id: I84ce84184f0ab169b7e548f142b66475bb819bba
hammerhead: Enable Button menu in Settings

Signed-off-by: Jake Whatley <jacob.whatley91@gmail.com>
Change-Id: I681f704a77acfc335f6307f14c9af15a9c6ac6c2
hammerhead: Enable volume button wake

Signed-off-by: Jake Whatley <jacob.whatley91@gmail.com>
Change-Id: Ie58a8dad0b4dfb9cf54b541c457cd5b082d4b19f
Update to correct blob script

Change-Id: I01f8bde2d9a8b2fec728be9a898659c831977a73
OmniTorch for Nexus 5 (hammerhead)

Refs from CM

Patchset 3: - add some more information to the overlay
            - put the call in device.mk back to where it was originally
Patchst 4: fix spacing

Change-Id: I07f6be272d57d228f2ca32804cf52c4e770e7abd