[PATCH 3/3] selftests: gpio: restore CFLAGS options

[Kent Gibson <warthog618@xxxxxxxxx>]

All the CFLAGS options were incorrectly removed in the recent rework
of the GPIO selftests.  While some of the flags were specific to the old
implementation the remainder are still relevant.  Restore those options.

Signed-off-by: Kent Gibson <warthog618@xxxxxxxxx>
---
 tools/testing/selftests/gpio/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/gpio/Makefile b/tools/testing/selftests/gpio/Makefile
index 42ea7d2aa844..d7b312b44a62 100644
--- a/tools/testing/selftests/gpio/Makefile
+++ b/tools/testing/selftests/gpio/Makefile
@@ -3,6 +3,6 @@
 TEST_PROGS := gpio-mockup.sh
 TEST_FILES := gpio-mockup-sysfs.sh
 TEST_GEN_PROGS_EXTENDED := gpio-mockup-cdev
-CFLAGS += -I../../../../usr/include
+CFLAGS += -O2 -g -Wall -I../../../../usr/include/
 
 include ../lib.mk
-- 
2.33.1