Turn flag back to default on

The flag for Credential Manager was default on
and then in review it was turned default off
and now for some reason the experiment is not
turning it back on so we should go back to
default on.

Change-Id: I3e8a270b20148a0bc9da1fe88bbd15695761eb6e
Test: device
Bug: 277107368

services/credentials/java/com/android/server/credentials/CredentialManagerService.java

@@ -796,7 +796,7 @@ public final class CredentialManagerService
                 return DeviceConfig.getBoolean(
                         DeviceConfig.NAMESPACE_CREDENTIAL,
                         DEVICE_CONFIG_ENABLE_CREDENTIAL_MANAGER,
-                        false);
+                        true);
             } finally {
                 Binder.restoreCallingIdentity(origId);
             }