feeds: fix disable nss feed from being packaged

Fix typo in feeds name

Signed-off-by: Sean Khan <[email protected]>

nss-setup/config-nss.seed

@@ -132,5 +132,5 @@ CONFIG_PACKAGE_tcpdump=y
 CONFIG_HTOP_LMSENSORS=n
 
 # Prevent opkg from adding custom feeds to /etc/opkg/distfeeds.conf
-CONFIG_FEED_nss=n
+CONFIG_FEED_nss_packages=n
 CONFIG_FEED_sqm_scripts_nss=n