Roll ndk to include CFI bad cast fixes.

Bug: 469376
Change-Id: Iffb2a09226d9394ccb29d25a8280a49f5441dd5f
Reviewed-on: https://chromium-review.googlesource.com/758150
Reviewed-by: agrieve <agrieve@chromium.org>
diff --git a/DEPS b/DEPS
index 0213a7e..bcb983a 100644
--- a/DEPS
+++ b/DEPS
@@ -1,7 +1,7 @@
 use_relative_paths = True
 
 vars = {
-  'ndk_revision': 'd57523210239b867fa4fb9d05c2aacc3f1802fe0',
+  'ndk_revision': 'aabf5c8f4b1ce4269be4791b469e27b15d93a3f2',
 }
 deps = {
   'ndk': 'https://chromium.googlesource.com/android_ndk.git' + '@' + Var('ndk_revision'),