[LSC] Add LOCAL_LICENSE_KINDS to external/libvpx

Added SPDX-license-identifier-BSD to:
  libvpx/third_party/libwebm/Android.mk

Bug: 68860345
Bug: 151177513
Bug: 151953481

Test: m all
Change-Id: I6f7c84479f15e43ad7721f75e06d664ed2db19b1
diff --git a/libvpx/third_party/libwebm/Android.mk b/libvpx/third_party/libwebm/Android.mk
index 3b3dd1d..23f935f 100644
--- a/libvpx/third_party/libwebm/Android.mk
+++ b/libvpx/third_party/libwebm/Android.mk
@@ -14,4 +14,7 @@
                   mkvmuxer/mkvmuxer.cc \
                   mkvmuxer/mkvmuxerutil.cc \
                   mkvmuxer/mkvwriter.cc
+LOCAL_LICENSE_KINDS := SPDX-license-identifier-BSD
+LOCAL_LICENSE_CONDITIONS := notice
+LOCAL_NOTICE_FILE := $(LOCAL_PATH)/LICENSE.TXT $(LOCAL_PATH)/PATENTS.TXT
 include $(BUILD_STATIC_LIBRARY)