Merge "gatt: Fix handling MTU Exchange request" am: 629d585c am: bb4504cb am: 762abe10 am: 88befef3 am: 54746fa5

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2363301



Change-Id: Id5ab52694e983ab220064449e4002a5de52ba7eb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>