msm: camera : Fix for OIS and actuator power up issue

OIS/actuator power up fails because of regulator enable failure.
To fix this issue enable regulator after regulator_get is successful.

Change-Id: I18e380599eda54bd020f4b0b2643a7cce5c66d07
Signed-off-by: Shankar Ravi <rshankar@codeaurora.org>
Signed-off-by: Vivek Veenam <vveenam@codeaurora.org>