Add the core device support code for the Philips UCB1200 and
UCB1300 devices.  Also includes the following from Pavel:

This fixes u32 vs. pm_message_t confusion and uses cleaner
try_to_freeze() [fixing compilation as a side-effect on newer
kernels.]
Signed-off-by: NPavel Machek <pavel@suse.cz>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>