Update the java doc of AndroidKeyStoreProvider#getKeyStoreOperationHandle to support Signature object

Bug: 191661889
Test: m droid
Merged-In: Ie65dcfe96f3bb00cc9af4d49e4e1d1f57bde438a
Change-Id: Ie65dcfe96f3bb00cc9af4d49e4e1d1f57bde438a
(cherry picked from commit 507a653a6e35fd3bf5b9a5927e4c17307593bcae)
1 file changed