Fix compilation of libaudiohal with ENABLE_TREBLE

Add a missing dependency on libhidltransport.

Test: ENABLE_TREBLE=true make
Change-Id: If4cf298eccabdcc7bc26275f743b7d4a833169ea
diff --git a/media/libaudiohal/Android.mk b/media/libaudiohal/Android.mk
index 2d6b3f5..63aa9c6 100644
--- a/media/libaudiohal/Android.mk
+++ b/media/libaudiohal/Android.mk
@@ -22,9 +22,10 @@
     StreamHalHidl.cpp
 
 LOCAL_SHARED_LIBRARIES += \
-    libhwbinder \
-    libhidlbase \
-    libbase     \
+    libhwbinder      \
+    libhidlbase      \
+    libhidltransport \
+    libbase          \
     android.hardware.audio@2.0             \
     android.hardware.audio.common@2.0      \
     android.hardware.audio.common@2.0-util \