Landmine to clobber failing Android x86/x64 builds

Clobber to fix Android x86/x64 builds after
https://codereview.webrtc.org/1414343008/

They started failing with errors like
../../third_party/android_tools/ndk/platforms/android-21/arch-x86_64/usr/include/stdint.h:32:20: fatal error: stddef.h: No such file or directory
   #include <stddef.h>
             ^
from https://build.chromium.org/p/tryserver.webrtc/builders/android_compile_x64_dbg/builds/10032/steps/compile/logs/stdio
A clobbered build solved the problem.

BUG=webrtc:5006
TBR=mbonadei@webrtc.org

Review-Url: https://codereview.webrtc.org/2601473002 .
Cr-Commit-Position: refs/heads/master@{#15757}
diff --git a/webrtc/build/get_landmines.py b/webrtc/build/get_landmines.py
index 983a0b8..7223446 100755
--- a/webrtc/build/get_landmines.py
+++ b/webrtc/build/get_landmines.py
@@ -43,6 +43,8 @@
            'rolling in https://codereview.webrtc.org/2293863002')
     print ('Clobber to remove old AppRTCDemo artifacts after renaming to '
            'AppRTCMobile in https://codereview.webrtc.org/2373443005')
+    print ('Clobber to fix Android x86/x64 builds after '
+           'https://codereview.webrtc.org/1414343008/')
   if platform() == 'win':
     print 'Clobber to resolve some issues with corrupt .pdb files on bots.'
     print 'Clobber due to corrupt .pdb files (after #14623)'