Renaming intent action manage unknown sources

Test: gts-tradefed run gts -m GtsExternalSourcesTestCases

Bug: 37515311
Change-Id: I3ad4ae24b67c6e8e68024bf5e8f73bc6563c443a
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 4f94bf8..4f09f23 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -2850,7 +2850,7 @@
                 android:label="@string/install_other_apps"
                 android:taskAffinity="">
             <intent-filter android:priority="1">
-                <action android:name="android.settings.action.MANAGE_UNKNOWN_APP_SOURCES" />
+                <action android:name="android.settings.MANAGE_UNKNOWN_APP_SOURCES" />
                 <category android:name="android.intent.category.DEFAULT" />
             </intent-filter>
             <meta-data android:name="com.android.settings.FRAGMENT_CLASS"
@@ -2861,7 +2861,7 @@
                   android:label="@string/install_other_apps"
                   android:taskAffinity="">
             <intent-filter android:priority="1">
-                <action android:name="android.settings.action.MANAGE_UNKNOWN_APP_SOURCES" />
+                <action android:name="android.settings.MANAGE_UNKNOWN_APP_SOURCES" />
                 <category android:name="android.intent.category.DEFAULT" />
                 <data android:scheme="package" />
             </intent-filter>