Update language to comply with Android's inclusive language guidance

See https://source.android.com/setup/contribute/respectful-code for reference

BUG=161896447

Change-Id: I0d42ed10f23013477f2dfba48b128ec13aef30ea
diff --git a/include/drm/DrmManagerClient.h b/include/drm/DrmManagerClient.h
index 866edac..a38aa9b 100644
--- a/include/drm/DrmManagerClient.h
+++ b/include/drm/DrmManagerClient.h
@@ -318,7 +318,7 @@
 
     /**
      * Removes all the rights information of each plug-in associated with
-     * DRM framework. Will be used in master reset
+     * DRM framework.
      *
      * @return status_t
      *     Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure