misc: qpnp: Initialize the variable to avoid junk value assign

Fix 'maybe uninitialized' warning by initializing temp value. 
"warning: 'temp' may be used uninitialized in this 
function [-Wmaybe-uninitialized]"

Change-Id: I48de4005f6bb6f5398a9221c09820c695c30e675
Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org>