ARM: fix EFM32 build breakage caused by cpu_resume_arm

Fix:
arch/arm/kernel/sleep.S:121: Error: selected processor does not support ARM opcodes
arch/arm/kernel/sleep.S:123: Error: attempt to use an ARM instruction on a Thumb-only processor -- `adr r9,1f+1'
arch/arm/kernel/sleep.S:124: Error: attempt to use an ARM instruction on a Thumb-only processor -- `bx r9'

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/kernel/sleep.S

@@ -118,12 +118,16 @@ ENDPROC(cpu_resume_after_mmu)
 
 	.text
 	.align
+
+#ifdef CONFIG_MMU
 	.arm
 ENTRY(cpu_resume_arm)
  THUMB(	adr	r9, BSYM(1f)	)	@ Kernel is entered in ARM.
  THUMB(	bx	r9		)	@ If this is a Thumb-2 kernel,
  THUMB(	.thumb			)	@ switch to Thumb now.
  THUMB(1:			)
+#endif
+
 ENTRY(cpu_resume)
 ARM_BE8(setend be)			@ ensure we are in BE mode
 #ifdef CONFIG_ARM_VIRT_EXT
@@ -155,7 +159,10 @@ THUMB(	ldmia	r0!, {r1, r2, r3}	)
 THUMB(	mov	sp, r2			)
 THUMB(	bx	r3			)
 ENDPROC(cpu_resume)
+
+#ifdef CONFIG_MMU
 ENDPROC(cpu_resume_arm)
+#endif
 
 	.align 2
 _sleep_save_sp: