rapidio: change to new flag variable

switches/ depends on RAPIDIO_DEBUG so the subdir-ccflags-y variant
seems to be appropriate here.

Signed-off-by: matt mooney <mfm@muteddisk.com>
Acked-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
diff --git a/drivers/rapidio/Makefile b/drivers/rapidio/Makefile
index b6139fe..89b8eca 100644
--- a/drivers/rapidio/Makefile
+++ b/drivers/rapidio/Makefile
@@ -5,6 +5,4 @@
 
 obj-$(CONFIG_RAPIDIO)		+= switches/
 
-ifeq ($(CONFIG_RAPIDIO_DEBUG),y)
-EXTRA_CFLAGS += -DDEBUG
-endif
+subdir-ccflags-$(CONFIG_RAPIDIO_DEBUG) := -DDEBUG
diff --git a/drivers/rapidio/switches/Makefile b/drivers/rapidio/switches/Makefile
index 48d67a6..c4d3acc 100644
--- a/drivers/rapidio/switches/Makefile
+++ b/drivers/rapidio/switches/Makefile
@@ -7,7 +7,3 @@
 obj-$(CONFIG_RAPIDIO_TSI568)	+= tsi568.o
 obj-$(CONFIG_RAPIDIO_TSI500)	+= tsi500.o
 obj-$(CONFIG_RAPIDIO_CPS_GEN2)	+= idt_gen2.o
-
-ifeq ($(CONFIG_RAPIDIO_DEBUG),y)
-EXTRA_CFLAGS += -DDEBUG
-endif