[source] kernel: add missing config symbol after rfkill change

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/96b59dc383115d9ac54de8031b2c2faa7f4ed757

commit 96b59dc383115d9ac54de8031b2c2faa7f4ed757
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Wed Sep 28 08:29:50 2016 +0200

    kernel: add missing config symbol after rfkill change
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 target/linux/generic/config-4.4 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/linux/generic/config-4.4 b/target/linux/generic/config-4.4
index ba4b8c1..c6fc642 100644
--- a/target/linux/generic/config-4.4
+++ b/target/linux/generic/config-4.4
@@ -901,6 +901,7 @@ CONFIG_DEFAULT_SECURITY=""
 CONFIG_DEFAULT_SECURITY_DAC=y
 CONFIG_DEFAULT_TCP_CONG="cubic"
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+# CONFIG_DELL_RBTN is not set
 # CONFIG_DELL_SMO8800 is not set
 # CONFIG_DEPRECATED_PARAM_STRUCT is not set
 # CONFIG_DETECT_HUNG_TASK is not set