msm: kgsl: Drive FAL QACTIVE signal high before GMU boot

Drive FAL QACTIVE signal high before GMU boot to make sure
path to DDR accepts transactions from GMU/GPU and comes out
of low power state if it was in a low power state.

Change-Id: I238a39c5b9dbd10a8c9b2c6437aaf48df410802f
Signed-off-by: Deepak Kumar <dkumar@codeaurora.org>