ARM: S5PC100: Fixup cross tree merge problems

The commit 45c79433 got things building
but then commit 17d2f877ae8b68b09bf88a9949ee64fbbda5ee10 and others
where merged in from a seperate tree and this has resulted from a build
failure due to the redefinition of IRQ_EINT().

Fix this by merging a new commit.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

arch/arm/mach-s5pc100/include/mach/regs-gpio.h

@@ -60,12 +60,9 @@
 #define S5PC100EINT30PEND		(S5P_VA_GPIO + 0xF40)
 #define S5P_EINT_PEND(x)		(S5PC100EINT30PEND + ((x) * 0x4))
 
-#define eint_offset(irq) ((irq) < IRQ_EINT16_31 ? ((irq) - IRQ_EINT(0)) : \
-			  (((irq) - S5P_EINT_BASE2)))
+#define EINT_REG_NR(x)			(EINT_OFFSET(x) >> 3)
 
-#define EINT_REG_NR(x)			(eint_offset(x) >> 3)
-
-#define eint_irq_to_bit(irq)		(1 << (eint_offset(irq) & 0x7))
+#define eint_irq_to_bit(irq)		(1 << (EINT_OFFSET(irq) & 0x7))
 
 /* values for S5P_EXTINT0 */
 #define S5P_EXTINT_LOWLEV		(0x00)