[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/Kconfig b/drivers/mfd/Kconfig
index 1588a59..1f8563b 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -13,4 +13,9 @@
 	depends on ARCH_SA1100
 	select MCP
 
+# Chip drivers
+config MCP_UCB1200
+	tristate "Support for UCB1200 / UCB1300"
+	depends on MCP
+
 endmenu