Merge "libmediautils: pin cpp_std to gnu++17" into main am: bd55f8b8 am: 544c1a76

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2833039



Change-Id: Ie2398c8ab4a4d4c92849ceed30065c62acf01a92
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>