ALSA: Release v1.0.18a

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/include/sound/version.h b/include/sound/version.h
index eae3155..2b48237 100644
--- a/include/sound/version.h
+++ b/include/sound/version.h
@@ -1,3 +1,3 @@
 /* include/version.h */
-#define CONFIG_SND_VERSION "1.0.18"
+#define CONFIG_SND_VERSION "1.0.18a"
 #define CONFIG_SND_DATE ""