ASoC: msm8960: fix for pop noise coming on liquid device while playback

Pop noise was observed during playback of any audio clip, GPIO's
to power top and bottom speaker amplifier for liquid and other
devices were swapped.

Made a fix to initialize the GPIO values according to the
hardware.

CRs-Fixed: 310879
Change-Id: Ib72796c2fcbd93c450cb5fb022a54633d6742bcd
Signed-off-by: Harmandeep Singh <hsingh@codeaurora.org>