common: Move enable/disable_interrupts out of common.h

Move these two functions into the irq_funcs.h header file. Also move
interrupt_handler_t as this is used by the irq_install_handler() function.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>

include/common.h

@@ -46,8 +46,6 @@ typedef volatile unsigned char	vu_char;
 
 #include <log.h>
 
-typedef void (interrupt_handler_t)(void *);
-
 #include <asm/u-boot.h> /* boot information for Linux kernel */
 #include <asm/global_data.h>	/* global data used for startup functions */
 
@@ -207,10 +205,6 @@ int	get_clocks (void);
 ulong	get_bus_freq  (ulong);
 int get_serial_clock(void);
 
-/* $(CPU)/interrupts.c */
-void	enable_interrupts  (void);
-int	disable_interrupts (void);
-
 /* lib/uuid.c */
 #include <uuid.h>