common/libcamera: Don't build on Exynos

Exynos has its own camera implementation in
hardware/samsung_slsi/exynos5/libcamera2 (used by Nexus 10).
Don't try to build both.

Change-Id: Iad4889fd9e8b918c3651b30b16400de1adb7e7a4
Signed-off-by: Bernhard Rosenkränzer <Bernhard.Rosenkranzer@linaro.org>
diff --git a/libcamera/Android.mk b/libcamera/Android.mk
index b15dc61..f73bc7f 100644
--- a/libcamera/Android.mk
+++ b/libcamera/Android.mk
@@ -1,6 +1,8 @@
-# omap4 has its own native camera implementation, see
+# Exynos and omap4 have their own native camera implementations, see
 # hardware/ti/omap4xxx
+# hardware/samsung_slsi/exynos5/libcamera2
 ifneq ($(TARGET_BOARD_PLATFORM),omap4)
+ifneq ($(TARGET_BOARD_PLATFORM),exynos5)
 LOCAL_PATH:= $(call my-dir)
 include $(CLEAR_VARS)
 LOCAL_SRC_FILES:= \
@@ -39,3 +41,4 @@
 
 include $(BUILD_SHARED_LIBRARY)
 endif
+endif