apply correct @SystemAPI for PackageManager

Bug: 138772432
Test: atest CtsDevicePolicyManagerTestCases:com.android.cts.devicepolicy.MixedManagedProfileOwnerTest#testSuspendPackage
Change-Id: I93441ed2dba933946aeaeabcfdb65e41bfccc447
(cherry picked from commit 6dcc20e79ae4d880e71fa166aed57222df519ef9)
Merged-in: I93441ed2dba933946aeaeabcfdb65e41bfccc447
1 file changed