alsa_sound: Fix for sudden increase in volume after device switch

- Switching from HDMI to speaker resutls in high volume on speaker for
  less than a second.
- This is due to audio on HDMI playing at maximum volume. And one or two buffers
  still gets played at this volume on the speaker resulting in sudden volume
  increase on the FFA.
-Fixed this by the increasing the delay from 75ms to 150ms
 between setting volume and device switch.

Change-Id: Iea6cc25e0f3cc50dc2ebca1134fffa53790cdfbd
CRs-Fixed: 345946
(cherry picked from commit 47b7a989a3c34a633a959cd4972a2840106bed15)
1 file changed