[ALSA] Add the notes on PM to ens1370/ens1371 sections

Modules: Documentation

Add the notes on PM to ens1370/ens1371 sections.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index b45f7be..f28c45c 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -513,6 +513,8 @@
 
     This module supports multiple cards and autoprobe.
     
+    The power-management is supported.
+
   Module snd-ens1371
   ------------------
 
@@ -526,6 +528,8 @@
 
     This module supports multiple cards and autoprobe.
     
+    The power-management is supported.
+
   Module snd-es968
   ----------------