[source] brcm63xx: fix HG556a C button

[LEDE Commits]

blogic pushed a commit to source.git, branch master:
https://git.lede-project.org/?p=source.git;a=commitdiff;h=cea917c30b26e59de11e3bc26b35b6d816ace1da

commit cea917c30b26e59de11e3bc26b35b6d816ace1da
Author: dani <dgcbueu at gmail.com>
AuthorDate: Fri Jul 22 12:45:54 2016 +0200

    brcm63xx: fix HG556a C button
    
    One button of the HG556a-C has the wrong GPIO pin defined in the dts file,
    fix it
    
    Signed-off-by: Daniel Gonzalez <dgcbueu at gmail.com>
---
 target/linux/brcm63xx/dts/hg556a-c.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/linux/brcm63xx/dts/hg556a-c.dts b/target/linux/brcm63xx/dts/hg556a-c.dts
index 3e64a2f..ada2a8c 100644
--- a/target/linux/brcm63xx/dts/hg556a-c.dts
+++ b/target/linux/brcm63xx/dts/hg556a-c.dts
@@ -21,7 +21,7 @@
 
 		help {
 			label = "help";
-			gpios = <&gpio0 8 1>;
+			gpios = <&gpio1 4 1>;
 			linux,code = <KEY_HELP>;
 		};
 		wlan {