Depend on the more specific ndk timestamp.

There are now two NDK sysroot timestamp files: ndk_base which depends
on the headers and stub libraries, and ndk which depends on ndk_base
and the static libraries. For building modules that need the NDK, we
only need to depend on the base sysroot.

Test: make native
Bug: None
Change-Id: I803032eda125a632d780c9cde10f47270491d0d2
diff --git a/core/binary.mk b/core/binary.mk
index 2f306b2..2b356d4 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -88,7 +88,7 @@
   endif
 
   # Make sure we've built the NDK.
-  my_additional_dependencies += $(SOONG_OUT_DIR)/ndk.timestamp
+  my_additional_dependencies += $(SOONG_OUT_DIR)/ndk_base.timestamp
 
   # mips32r6 is not supported by the NDK. No released NDK contains these
   # libraries, but the r10 in prebuilts/ndk had a local hack to add them :(