Handle unknown case in LocationManager.getProvider

If a provider is unknown, return null in
LocationManagerService.getProviderProperties() instead of throwing a
security exception, so that LocationManager.getProvider() returns null
in this case, as specified by the javadoc.

Bug: 7359960
Change-Id: I1b8b74745f66717a3439a1d353a46a23272cc313
1 file changed