[PATCH] MIPS: zboot: fix build failure

[Sudip Mukherjee]

The build of mips ar7_defconfig was failing with the error:
arch/mips/boot/compressed/Makefile:21:
  *** insufficient number of arguments (1) to function `filter-out'.
	Stop.

A ',' was missing while adding filter-out.

Fixes: afca036d463c ("MIPS: zboot: Consolidate compiler flag filtering.")
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@xxxxxxxxxxxxxxx>
---

build log is at:
https://travis-ci.org/sudipm-mukherjee/parport/jobs/188737021

 arch/mips/boot/compressed/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
index 608389a..c675eec 100644
--- a/arch/mips/boot/compressed/Makefile
+++ b/arch/mips/boot/compressed/Makefile
@@ -18,7 +18,7 @@ include $(srctree)/arch/mips/Kbuild.platforms
 BOOT_HEAP_SIZE := 0x400000
 
 # Disable Function Tracer
-KBUILD_CFLAGS := $(filter-out -pg $(KBUILD_CFLAGS))
+KBUILD_CFLAGS := $(filter-out -pg, $(KBUILD_CFLAGS))
 
 KBUILD_CFLAGS := $(filter-out -fstack-protector, $(KBUILD_CFLAGS))
 
-- 
1.9.1