Android U Beta 1 GPL
Upgrade obstack to gcc-12.2.0 am: 6705a37140 am: 6fe362eb62

Original change: https://android-review.googlesource.com/c/platform/external/obstack/+/2243174

Change-Id: I82f0d77ce8b1bf61db925c1e9797b709ac08691b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>