mfd: twl4030-irq: Fix incorrect type in assignment warning

Silences Sparse warning:

drivers/mfd/twl4030-irq.c:485:26: warning: incorrect type in assignment (different base types)
drivers/mfd/twl4030-irq.c:485:26: expected unsigned int [usertype] word
drivers/mfd/twl4030-irq.c:485:26: got restricted __le32 [usertype]

Cc: Tony Lindgren <[e-mail]>
Cc: Kai Svahn <[e-mail]>
Cc: Syed Khasim <[e-mail]>
Cc: [e-mail]
Signed-off-by: Lee Jones <[e-mail]>

drivers/mfd/twl4030-irq.c

···
 
 	if (agent->imr_change_pending) {
 		union {
-			u32	word;
+			__le32	word;
 			u8	bytes[4];
 		} imr;