[MFD] Add code UCB1200/UCB1300 device support

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: Pavel Machek <pavel@suse.cz>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 98bdd6a..90815b2 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -4,3 +4,4 @@
 
 obj-$(CONFIG_MCP)		+= mcp-core.o
 obj-$(CONFIG_MCP_SA11X0)	+= mcp-sa11x0.o
+obj-$(CONFIG_MCP_UCB1200)	+= ucb1x00-core.o