Change QAWClient to call bindServiceAsUser.

QAWClient should pass in the user to the service binding call to support
cross-profile Wallet use case.
This fixes the bug where work profile Wallet is set as the default
wallet, but the QAWTile points to the personal Wallet.

Bug: 396113946
Test: atest QuickAccessWalletClientTest and manual verification.
Flag: EXEMPT bug fix
Change-Id: I5405fe7e7ae224eee3db0679c0addab25acd8928