Increasd pmem size from 20mb to 32mb to try and fix gralloc errors

Change-Id: I1fa6a8b0b082152f2c3bc0bd52b84d79570c0c66
Always enable IRQ when resuming display.
This should fix all the touchscreen freezes.
Revert "Increasd pmem size from 20mb to 32mb to try and fix gralloc errors"

This reverts commit 7afd2403aab01dd08e3515025ab94e8fff7f6b29.