MDSS: Fix resume/suspend issue

When HDMI display configured to primary and it moves to suspend state
cause to gpio_free() that is not allocated yet. Inserted checking of gpio
allocation before gpio_free().

Change-Id: I0e01cfd2cc04d3dab1f1a513b30f56705c318201
Signed-off-by: Tanya Finkel <tfinkel@codeaurora.org>
1 file changed