trivial: fix typo "to to" in multiple files

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/Documentation/networking/regulatory.txt b/Documentation/networking/regulatory.txt
index eaa1a25..ee31369 100644
--- a/Documentation/networking/regulatory.txt
+++ b/Documentation/networking/regulatory.txt
@@ -96,7 +96,7 @@
 
 This example comes from the zd1211rw device driver. You can start
 by having a mapping of your device's EEPROM country/regulatory
-domain value to to a specific alpha2 as follows:
+domain value to a specific alpha2 as follows:
 
 static struct zd_reg_alpha2_map reg_alpha2_map[] = {
 	{ ZD_REGDOMAIN_FCC, "US" },