msm: camera: Add check for I2C & SPI during IO release

Add check to ensure valid error code is returned in case
of I2C/SPI master during IO release. In an event where such
clients don't make such calls no error needs to be returned.

Change-Id: I3434573164c11534a486d3fd398e7d662cca1218
Signed-off-by: Karthik Anantha Ram <kartanan@codeaurora.org>