Add build system
Clone hammerhead_defconfig to Sultan_defconfig
Makefile: ARCH is arm
Sultan_defconfig: autogenerate
Sultan_defconfig: Clean up excessive debugging & optimize

Signed-off-by: Sultanxda <sultanxda@gmail.com>
init: Kconfig: Don't force DEBUG_KERNEL
.gitignore: Ignore *.img files
mach-msm: Add .gitignore for smd_rpc_sym.c
mdss: Import from CM kernel
.gitignore: Ignore *.rej files
lib: Kconfig.debug: Don't force DEBUG_BUGVERBOSE
Sultan_defconfig: Disable DEBUG_BUGVERBOSE
mdss: Import from myfluxi
mdss: Remove LCD_KCAL bits