BoardConfig: Remove build optimization flags.

Seemed to do more harm then good

Change-Id: Ie40770f46b3e6660d9af3e846027179165f796e9
BoardConfig: Define kernel source directory

Change-Id: I8d5c0b55130708d2d7452416abefa247cbca985d
BoardConfig: Remove some un-used and depreciated flags

Change-Id: I5fad7ad408d17fdef74a0aefe26049d3da8b76a1
Cleanup

Change-Id: I7f2a8d566fe921f0de232f168dfcf434a23308ca
BoardConfig: Move RIL define to device tree

Change-Id: I4fae8e39191e72d338b2883a7b11a3a4cb81e9b4