AOSP/SafetyRegulatoryInfo - update the SafetyRegulatoryInfo test package version to target P (28) or higher.

Bug: 115499280

Test: manual - Ran the following tests on Pixel phone. Tested the SafetyRegulatoryInfo manually.

$ make SafetyRegulatoryInfo -j
  -rw-r--r-- 1 rtenneti primarygroup 29256 Dec 12 16:12 out/target/product/marlin/system/app/SafetyRegulatoryInfo/SafetyRegulatoryInfo.apk

$ fastboot flashall -w to install the package and tested Safety and Regulatory manual in "System" -> "About Phone".

Change-Id: Ie7dd9f03d404f170b85a955e4e9c2fc2ace0a852
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 68c177d..9ea50bb 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -16,7 +16,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.android.safetyregulatoryinfo">
 
-    <uses-sdk android:minSdkVersion="23" android:targetSdkVersion="23" />
+    <uses-sdk android:minSdkVersion="23" android:targetSdkVersion="28" />
 
     <application
         android:allowBackup="false"