Documentation: remove references to /etc/modprobe.conf

Usage of /etc/modprobe.conf file was deprecated by module-init-tools and
is no longer parsed by new kmod tool. References to this file are
replaced in Documentation, comments and Kconfig according to the
context.

There are also some references to the old /etc/modules.conf from 2.4
kernels that are being removed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/Documentation/networking/baycom.txt b/Documentation/networking/baycom.txt
index 4e68849..688f18f 100644
--- a/Documentation/networking/baycom.txt
+++ b/Documentation/networking/baycom.txt
@@ -93,7 +93,7 @@
 modems it should access at which ports. This can be done with the setbaycom
 utility. If you are only using one modem, you can also configure the
 driver from the insmod command line (or by means of an option line in
-/etc/modprobe.conf).
+/etc/modprobe.d/*.conf).
 
 Examples:
   modprobe baycom_ser_fdx mode="ser12*" iobase=0x3f8 irq=4