msm: Fix NULL pointer dereference in sensors ADSP driver

Memory is allocated on the heap via kzalloc for temp variable.
Then it is passed through error checking. Error checking is
incorrect however, because instead of immediately returning -ENOMEM,
the function continues without returning. temp could be potentially
NULL when passed in to memcpy, causing a NULL dereference and writing
to that location.

Change-Id: Ib9faef2a542d1d8da35e1b3f7292596c9bddadba
CRs-fixed: 563553
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>