[source] firmware-utils: mktplinkfw2: fix support for -w option

[LEDE Commits]

rmilecki pushed a commit to source.git, branch master:
https://git.lede-project.org/896246b8c5835240de5dc72e6253b51528e69930

commit 896246b8c5835240de5dc72e6253b51528e69930
Author: Rafał Miłecki <rafal at milecki.pl>
AuthorDate: Sun Jul 2 22:28:24 2017 +0200

    firmware-utils: mktplinkfw2: fix support for -w option
    
    This fixes copy & paste typo when reading -w argument.
    
    Fixes: 4b35e174caa5b ("firmware-utils: mktplinkfw2: support additional hardware version")
    Signed-off-by: Rafał Miłecki <rafal at milecki.pl>
---
 tools/firmware-utils/src/mktplinkfw2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/firmware-utils/src/mktplinkfw2.c b/tools/firmware-utils/src/mktplinkfw2.c
index 14c5a49..aa2e5cc 100644
--- a/tools/firmware-utils/src/mktplinkfw2.c
+++ b/tools/firmware-utils/src/mktplinkfw2.c
@@ -428,7 +428,7 @@ static int check_options(void)
 			hw_rev = 1;
 
 		if (opt_hw_ver_add)
-			hw_ver_add = strtoul(opt_hw_rev, NULL, 0);
+			hw_ver_add = strtoul(opt_hw_ver_add, NULL, 0);
 		else
 			hw_ver_add = 0;
 	}