Fix testRegisterUsageCallback

noteOp (introduced in go/ag/3897834) checks that the calling uid matches
the calling package, which is not correct when using a fake calling
package. Use the real package of the test so permissions are checked
properly.

The test currently only fails this way in pi-dev as noteOp is only used
in pi-dev.
Change-Id: I9ac3717af9335ba9efa0b8842a2df0d7b69ec9ab
Test: Fixed test now passes in pi-dev
Bug: b/78487385