ARM: tuna: add tuna board file and config

Signed-off-by: Brian Swetland <swetland@google.com>

Conflicts:
	arch/arm/mach-omap2/Makefile

Conflicts:
	arch/arm/plat-omap/include/plat/uncompress.h
ARM: omap: tuna_defconfig: Add command line

Signed-off-by: Colin Cross <ccross@android.com>

Conflicts:
	arch/arm/configs/tuna_defconfig
HACK: ARM: tuna_defconfig: disable SMP for now

Tuna fails to boot 2nd cpu if battery is not present

Signed-off-by: Colin Cross <ccross@android.com>