Update material library to 1.2.1

- Since the material library 1.2.1 not depdends on androidx.legacy_legacy-support-core-utils anymore, adding the dependecy lib to build file directly

Test: m -j16
Change-Id: I10612e80187301ace9aaef82e17b2220f999442b
diff --git a/Android.bp b/Android.bp
index cffb421..ce65ffd 100644
--- a/Android.bp
+++ b/Android.bp
@@ -3,7 +3,10 @@
 android_app {
     name: "Stk",
     libs: ["telephony-common"],
-    static_libs: ["com.google.android.material_material"],
+    static_libs: [
+        "com.google.android.material_material",
+        "androidx.legacy_legacy-support-core-utils",
+    ],
     srcs: ["**/*.java"],
     platform_apis: true,
     certificate: "platform",