[VCN11.1] Update API shims for requestBackgroundNetwork am: f86d05ffdb am: 8627524caa

Original change: https://android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/1633159

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Idf692e10e641cb0c96dd5c57856cc02114d5933d