msm: Raise MDP bandwidth factor for Samsung HD panel

 * We're seeing underruns in certain applications such as Swype and
   Thumb Keyboard. Raise the bandwidth factors to fix this.

Change-Id: Icddd1d2034b0699ed2505c4adafbd14ddc20e942

Conflicts:
	arch/arm/mach-msm/board-m2-display.c