[Android][WebAuthn] Use params from WebauthnModeProvider in Fido2ApiCall

This was overlooked in earlier CLs. But APP mode needs to use
IFido2AppService and browser needs to use IFido2PrivilegedService.
Before this CL app mode was trying to call IFido2PrivilegedService
and failing.

Bug: b/320291974, 1511193
Change-Id: I34179afff675f20477ef9633dc9d1304682fd5df
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5198305
Reviewed-by: Ken Buchanan <kenrb@chromium.org>
Code-Coverage: findit-for-me@appspot.gserviceaccount.com <findit-for-me@appspot.gserviceaccount.com>
Commit-Queue: Adem Derinel <derinel@google.com>
Cr-Commit-Position: refs/heads/main@{#1247271}

components/webauthn/android/java/src/org/chromium/components/webauthn/Fido2ApiCall.java

@@ -245,7 +245,7 @@ public final class Fido2ApiCall extends GoogleApi<ApiOptions.NoOptions> {
      * @param context the Android {@link Context} for the current process.
      */
     public Fido2ApiCall(Context context) {
-        this(context, BROWSER_API);
+        this(context, WebauthnModeProvider.getInstance().getFido2ApiCallParams());
     }
 
     /**