Add libdl for all platforms

Change-Id: I427357aaba4b7089e8ee76d344c21f58fb9fdaab
Signed-off-by: Haitao Feng <haitao.feng@intel.com>
diff --git a/rild/Android.mk b/rild/Android.mk
index 5192fd9..049f103 100644
--- a/rild/Android.mk
+++ b/rild/Android.mk
@@ -9,11 +9,8 @@
 
 LOCAL_SHARED_LIBRARIES := \
 	libcutils \
-	libril
-
-ifeq ($(TARGET_ARCH),arm)
-LOCAL_SHARED_LIBRARIES += libdl
-endif # arm
+	libril \
+	libdl
 
 LOCAL_CFLAGS := -DRIL_SHLIB