pinctrl: msm: Correct function group for mdp_vsync_out_* for Scuba

Correct function group for mdp_vsync_out_0 and mdp_vsync_out_1
in Scuba platform. It has happened due to same two words of the
config name in the same gpio.

Change-Id: I03c96966c89335f13962dcda4a420872f9b508c0
Signed-off-by: Shadab Naseem <snaseem@codeaurora.org>