FMRadio: Uprev target/min SDK

* For targetting SDK 30, no changes are necessary, SDK 31+ however,
  forbids use of most of the audio functions that this application uses.

Change-Id: I9ca0eb94941a36d82e04e2dba6f8eea8aa451040
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 71a56e0..82db26d 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -23,8 +23,8 @@
 
     <!-- FM uses AudioPatch which is new in sdk 21 -->
     <uses-sdk
-        android:minSdkVersion="21"
-        android:targetSdkVersion="23"
+        android:minSdkVersion="26"
+        android:targetSdkVersion="30"
         android:usesCleartextTraffic="false" />
 
     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />