6lowpan: mac802154: fix coding style issues

This patch fixed the coding style issues reported by checkpatch.pl

following issues fixed:
	CHECK: Alignment should match open parenthesis
	WARNING: line over 80 characters
	CHECK: Blank lines aren't necessary before a close brace '}'
	WARNING: networking block comments don't use an empty /* line, use /* Comment...
	WARNING: Missing a blank line after declarations
	WARNING: networking block comments start with * on subsequent lines
	CHECK: braces {} should be used on all arms of this statement

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Tested-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ieee802154/ieee802154.h

@@ -43,7 +43,7 @@ struct genl_info;
 struct sk_buff *ieee802154_nl_create(int flags, u8 req);
 int ieee802154_nl_mcast(struct sk_buff *msg, unsigned int group);
 struct sk_buff *ieee802154_nl_new_reply(struct genl_info *info,
-		int flags, u8 req);
+					int flags, u8 req);
 int ieee802154_nl_reply(struct sk_buff *msg, struct genl_info *info);
 
 extern struct genl_family nl802154_family;