flo: GPU Overclocking: add 450 MHz option

Conflicts:
	arch/arm/mach-msm/Kconfig

Change-Id: Iadd1f002b50cf1339fc1a769d6d416c2365221ea
Signed-off-by: Paul Reioux <reioux@gmail.com>
flo: defconfig update (enable GPU Overclock)


** Linux 3.4.101 Kernel Configuration

Change-Id: I3c9b47d6b482d2091aaf07766978ced991672d81