msm: pil: Include peripheral name in error prints

Although dev_err() is already used for most error prints, the device
names that are printed (ex. 'pil2') don't allow easy identification
of which peripheral was involved. Include the peripheral name in
these prints to address this.

Change-Id: I9adcdec9dabc7a5d595d10053612627ffb1bbeff
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>