ARM: mach-shmobile: sh7372 sleep warning fixes

Update the sh7372 sleep code to build parts of the
code only when SUSPEND and/or CPU_IDLE are set.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
diff --git a/arch/arm/mach-shmobile/sleep-sh7372.S b/arch/arm/mach-shmobile/sleep-sh7372.S
index d365842..f3ab3c5 100644
--- a/arch/arm/mach-shmobile/sleep-sh7372.S
+++ b/arch/arm/mach-shmobile/sleep-sh7372.S
@@ -34,6 +34,7 @@
 #include <asm/memory.h>
 #include <asm/assembler.h>
 
+#if defined(CONFIG_SUSPEND) || defined(CONFIG_CPU_IDLE)
 	.align	12
 	.text
 	.global sh7372_resume_core_standby_a3sm
@@ -91,3 +92,4 @@
 
 kernel_flush:
 	.word v7_flush_dcache_all
+#endif