log: Add missing log message from glusterfsd.c to glusterfsd-messages.h

... by retaining GLFS_NUM_MESSAGES as 33 which is its correct value.

Also replace all occurrences of gf_log with gf_msg/gf_msg_debug.

Change-Id: Ibfbe1d645de521e8d59ca406f78b1a8eb08aa7e0
BUG: 1075611
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/7371
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>