[POWERPC] Enable debug info on boot wrapper

Add '-g' to BOOTCFLAGS if CONFIG_DEBUG_INFO is set.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index f3f7ce3..18e3271 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -25,6 +25,10 @@
 		 -isystem $(shell $(CROSS32CC) -print-file-name=include)
 BOOTAFLAGS	:= -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
 
+ifdef CONFIG_DEBUG_INFO
+BOOTCFLAGS	+= -g
+endif
+
 ifeq ($(call cc-option-yn, -fstack-protector),y)
 BOOTCFLAGS	+= -fno-stack-protector
 endif