remove mention of CONFIG_KMOD from documentation

Also includes a few Kconfig files (xtensa, blackfin)

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: linux-doc@vger.kernel.org
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>

Documentation/sound/alsa/DocBook/alsa-driver-api.tmpl

@@ -42,7 +42,7 @@
      <sect1><title>Device Components</title>
 !Esound/core/device.c
      </sect1>
-     <sect1><title>KMOD and Device File Entries</title>
+     <sect1><title>Module requests and Device File Entries</title>
 !Esound/core/sound.c
      </sect1>
      <sect1><title>Memory Management Helpers</title>