ARM: OMAP: Add missing get_irqnr_preamble and arch_ret_to_user for omap2

Only entries for omap1 were added earlier.
Signed-off-by: Tony Lindgren <tony@atomide.com>

include/asm-arm/arch-omap/entry-macro.S

@@ -61,6 +61,12 @@
 		.macro	disable_fiq
 		.endm
 
+		.macro  get_irqnr_preamble, base, tmp
+		.endm
+
+		.macro  arch_ret_to_user, tmp1, tmp2
+		.endm
+
 		.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
 		ldr	\base, =VA_IC_BASE
 		ldr	\irqnr, [\base, #0x98] /* IRQ pending reg 1 */