ARM: dts: msm: Change the node location for optimization for Shima

Optimise for boot up time since it will use special node and dt
property before unflat and put those in the beginning of the
device tree can make it search fast.

Also, bootloader need to update property in firmware, so move
firmware node ahead can improve the bootloader search dt and
update property time.

Change-Id: I2fd58fdac57608b57a3996581397104168440ed0