Change MNC codename to just M.

Change-Id: Idd2128bf42314f1fe985dcb58b0fe226004e1712
diff --git a/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/PermissionUtil.java b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/PermissionUtil.java
index ba2370f..f5241ef 100644
--- a/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/PermissionUtil.java
+++ b/prebuilts/gradle/RuntimePermissions/Application/src/main/java/com/example/android/system/runtimepermissions/PermissionUtil.java
@@ -83,7 +83,7 @@
          TODO: In the Android M Preview release, checking if the platform is M is done through
          the codename, not the version code. Once the API has been finalised, the following check
          should be used: */
-        // return Build.VERSION.SDK_INT == Build.VERSION_CODES.MNC
+        // return Build.VERSION.SDK_INT == Build.VERSION_CODES.M
 
         return "MNC".equals(Build.VERSION.CODENAME);
     }
diff --git a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/java/com/example/android/basicpermissions/MainActivity.java b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/java/com/example/android/basicpermissions/MainActivity.java
index 4e758a8..37e8556 100644
--- a/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/java/com/example/android/basicpermissions/MainActivity.java
+++ b/prebuilts/gradle/RuntimePermissionsBasic/Application/src/main/java/com/example/android/basicpermissions/MainActivity.java
@@ -135,7 +135,7 @@
          TODO: In the Android M Preview release, checking if the platform is M is done through
          the codename, not the version code. Once the API has been finalised, the following check
          should be used: */
-        // return Build.VERSION.SDK_INT >= Build.VERSION_CODES.MNC
+        // return Build.VERSION.SDK_INT >= Build.VERSION_CODES.M
 
         return "MNC".equals(Build.VERSION.CODENAME);
     }