Use callingUid not appId for permission check

The calling uid shouldn't be stripped of the user, this can cause the
permission check to fail if the calling app is from a secondary user.

Test: atest CtsPackageUninstallTestCases --user-type secondary_user
Fixes: 173622108
Change-Id: If19aa3bdf397a866d24c6fa2ff4a110eba802853