ecryptfs: Fix warning in ecryptfs_process_response()

Fix warning seen with "make -j24 CONFIG_DEBUG_SECTION_MISMATCH=y V=1":

fs/ecryptfs/messaging.c: In function 'ecryptfs_process_response':
fs/ecryptfs/messaging.c:276: warning: 'daemon' may be used uninitialized in this function

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>