Roll DEPS to upgrade Android NDK to r20.

Roll third_party/android_ndk/ 099a70aef..89e8db0cd (4 commits)

https://chromium.googlesource.com/android_ndk.git/+log/099a70aef125..89e8db0cdf32

Created with:
  roll-dep third_party/android_ndk

Roll build/ b9e0d9224..36d9c4f85 (6 commits)

https://chromium.googlesource.com/chromium/src/build.git/+log/b9e0d9224b62..36d9c4f858cd

Created with:
  roll-dep build

TBR=dsinclair@chromium.org

Change-Id: I456ae0978ad8ae1e59bb754edbbfc0135f967ede
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/60490
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index 9ac5765..e4b8c7b 100644
--- a/DEPS
+++ b/DEPS
@@ -12,9 +12,9 @@
   'chromium_git': 'https://chromium.googlesource.com',
   'pdfium_git': 'https://pdfium.googlesource.com',
 
-  'android_ndk_revision': '099a70aef125058228f92f3ae6944904b477f97f',
+  'android_ndk_revision': '89e8db0cdf323af8bc24de875d7d2a43a66bf10e',
   'binutils_revision': '01aa7745b0bab64ae22600f09fd6483c60f22ebf',
-  'build_revision': 'b9e0d9224b62f89c03b617dbfd5a1fee8b5c83fc',
+  'build_revision': '36d9c4f858cd7ed1ae234043c0761e50d84ab6a7',
   'buildtools_revision': 'fce87d1a3208b830194ee24b16aca7afa7916577',
   'catapult_revision': '884c81e1703f23320657fab45aaeca226f64de25',
   'clang_revision': '8215b086137d5de08cd573955799a24cd40b4f1f',