patches/packages/mwan3: Enable GSM configuration

We prepared nice GSM configuration but it was still disabled by default,
so let's enable it.

patches/packages/branding/0015-mwan3-Customize-default-settings.patch

@@ -13,13 +13,23 @@ diff --git a/net/mwan3/files/etc/config/mwan3 b/net/mwan3/files/etc/config/mwan3
 index 54c449fdf..54c4f6b13 100644
 --- a/net/mwan3/files/etc/config/mwan3
 +++ b/net/mwan3/files/etc/config/mwan3
+@@ -13,7 +13,7 @@ config interface 'wan'
+ 	option family 'ipv4'
+ 	option reliability '2'
+ 
+ config interface 'wan6'
+-	option enabled '0'
++	option enabled '1'
+ 	list track_ip '2001:4860:4860::8844'
+ 	list track_ip '2001:4860:4860::8888'
 @@ -22,7 +22,7 @@ config interface 'wan6'
  	option family 'ipv6'
  	option reliability '2'
  
 -config interface 'wanb'
+-	option enabled '0'
 +config interface 'gsm'
- 	option enabled '0'
++	option enabled '1'
  	list track_ip '8.8.4.4'
  	list track_ip '8.8.8.8'
 @@ -31,7 +31,7 @@ config interface 'wanb'
@@ -27,8 +37,9 @@ index 54c449fdf..54c4f6b13 100644
  	option reliability '1'
  
 -config interface 'wanb6'
+-	option enabled '0'
 +config interface 'gsm6'
- 	option enabled '0'
++	option enabled '1'
  	list track_ip '2001:4860:4860::8844'
  	list track_ip '2001:4860:4860::8888'
 @@ -50,13 +50,13 @@ config member 'wan_m2_w3'