ARM: davinci: dm644x: add new clock init using common clock framework

This adds the new board-specific clock init in mach-davinci/dm644x.c
using the new common clock framework drivers.

The #ifdefs are needed to prevent compile errors until the entire
ARCH_DAVINCI is converted.

Also clean up the #includes since we are adding some here.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

arch/arm/mach-davinci/davinci.h

@@ -108,6 +108,7 @@ int dm365_gpio_register(void);
 void dm644x_init(void);
 void dm644x_init_devices(void);
 void dm644x_init_time(void);
+void dm644x_register_clocks(void);
 void dm644x_init_asp(void);
 int dm644x_init_video(struct vpfe_config *, struct vpbe_config *);
 int dm644x_gpio_register(void);