[VCN11.1] Update API shims for requestBackgroundNetwork am: f86d05ffdb am: 8627524caa am: 36ff0c6598

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

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ib153bc0902709aab2f1abe9c15d3022f68bea137