Roll android libcore/bionic

Catch-up with changes introduced in aosp/890585 to fix the unbundled
build.

Change-Id: If138448dd24e96947003ca351e8d665068418796
diff --git a/tools/install-build-deps b/tools/install-build-deps
index 7674dd8..1c6eda2 100755
--- a/tools/install-build-deps
+++ b/tools/install-build-deps
@@ -170,7 +170,7 @@
   # These dependencies are for libunwindstack, which is used by src/profiling.
   ('buildtools/android-core',
    'https://android.googlesource.com/platform/system/core.git',
-   'dd70df2e69d06abd87c00b957840248397917dcc',
+   'f80c326d2e90c648196e9da5b536fa382b1ee7ad',
    'all'
   ),
 
@@ -182,7 +182,7 @@
 
   ('buildtools/bionic',
    'https://android.googlesource.com/platform/bionic.git',
-   '4b7c5cca7fbd0330cdfef41c97f1401824e78fba',
+   'a60488109cda997dfd83832731c8527feaa2825e',
    'all'
   ),