[ARM] Fix fallout from IRQ regs changes

Some ARM platforms were still broken as a result of the IRQ register
passing changes, mostly due to a missing linux/irq.h include.

Signed-off-by: Russell King <[e-mail]>

arch/arm/mach-footbridge/dc21285.c

···
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/ioport.h>
+#include <linux/irq.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>

arch/arm/mach-pxa/lubbock.c

···
 	if (LUB_IRQ_SET_CLR & (1 << 0))
 		mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
 	else {
-		(void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data, NULL);
+		(void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data);
 		enable_irq(LUBBOCK_SD_IRQ);
 	}
 }

arch/arm/oprofile/op_model_xscale.c

···
 #include <linux/sched.h>
 #include <linux/oprofile.h>
 #include <linux/interrupt.h>
-#include <asm/irq.h>
+#include <linux/irq.h>
+
 #include <asm/system.h>
 
 #include "op_counter.h"