photophase: don't reset transition timer on pause

JIRA: CYAN-4836
https://jira.cyanogenmod.org/browse/CYAN-4836
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>

Change-Id: I816ac4b0c015ec6c3f85272d33100fd710e76e6f
Merge "photophase: don't reset transition timer on pause" into cm-11.0