exynos5: libkeymaster: add keymaster HAL for Exynos5

Change-Id: I5f89cbda9f24683ace7dd13e5d279af3546811e2
Signed-off-by: DongJin Park <djpax.park@samsung.com>
diff --git a/Android.mk b/Android.mk
index 6d62473..6011710 100644
--- a/Android.mk
+++ b/Android.mk
@@ -31,6 +31,7 @@
 	libhwc \
 	libcamera2 \
 	mobicore \
+	libkeymaster \
 	gralloc
 
 BOARD_USE_V4L2 := true