android: add some more stub functions for cross compilation

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9796>

src/android_stub/nativewindow_stub.cpp

@@ -12,4 +12,17 @@ void AHardwareBuffer_acquire(AHardwareBuffer* buffer) {
 void AHardwareBuffer_release(AHardwareBuffer* buffer) {
 }
 
+void AHardwareBuffer_describe(const AHardwareBuffer* buffer,
+        AHardwareBuffer_Desc* outDesc) {
+}
+
+int AHardwareBuffer_allocate(const AHardwareBuffer_Desc* desc,
+        AHardwareBuffer** outBuffer) {
+   return 0;
+}
+
+const native_handle_t* AHardwareBuffer_getNativeHandle(const AHardwareBuffer* buffer) {
+   return NULL;
+}
+
 }