msm: ais: isp: Reducing ISPIF stop waiting time

 Initial ISPIF waiting was one second which causes
 hang for one second in case of sensor removal hence
 wait is reduced to 200ms.

Change-Id: I531a880435983fe2e1e4f0f7616c6a6b1632dac8
Signed-off-by: Rahul Sharma <sharah@codeaurora.org>