ARM: sa1111: fix pcmcia interrupt mask polarity

The polarity of the high IRQs was being calculated using
SA1111_IRQMASK_HI(), but this assumes a Linux interrupt number, not a
hardware interrupt number.  Hence, the resulting mask was incorrect.
Fix this.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c
index 332b923..cfa61b8 100644
--- a/arch/arm/common/sa1111.c
+++ b/arch/arm/common/sa1111.c
@@ -472,8 +472,8 @@
 	 * specifies that S0ReadyInt and S1ReadyInt should be '1'.
 	 */
 	sa1111_writel(0, irqbase + SA1111_INTPOL0);
-	sa1111_writel(SA1111_IRQMASK_HI(IRQ_S0_READY_NINT) |
-		      SA1111_IRQMASK_HI(IRQ_S1_READY_NINT),
+	sa1111_writel(BIT(IRQ_S0_READY_NINT & 31) |
+		      BIT(IRQ_S1_READY_NINT & 31),
 		      irqbase + SA1111_INTPOL1);
 
 	/* clear all IRQs */