Fix model info in Arima's ServiceMenu

We changed the Build interface getArimaModel to getFairphoneModel to
match with the brand name. However, Arima's service menu still uses the
legacy interface, so we need to keep it in as well.

Fixes "Service info > Model info" in ServiceMenu app.

Issue: FP3-A11#250
Change-Id: I7566f34cdde9e9e27cd632c85621ddc1dfd452e9
diff --git a/core/java/android/os/Build.java b/core/java/android/os/Build.java
index 64c6cbc..a816cff 100755
--- a/core/java/android/os/Build.java
+++ b/core/java/android/os/Build.java
@@ -1297,7 +1297,11 @@
     @SystemApi
     public static final boolean PERMISSIONS_REVIEW_REQUIRED = true;
 
-    /** {@hide} */
+    /**
+     * Get Fairphone 3 model variant, FP3 vs. FP3+
+     *
+     * @hide
+     * */
     public static String getFairphoneModel() {
         String backCamera = getString("persist.vendor.camera.back");
         String frontCamera = getString("persist.vendor.camera.front");
@@ -1310,6 +1314,17 @@
     }
 
     /**
+     * Legacy variant of getFairphoneModel()
+     *
+     * Legacy interface is required for Arima's ServiceMenu.
+     *
+     * @hide
+     * */
+    public static String getArimaModel() {
+        return getFairphoneModel();
+    }
+
+    /**
      * Returns the version string for the radio firmware.  May return
      * null (if, for instance, the radio is not currently on).
      */