base-files: wait for wifi modules to settle

On slower devices wifi drivers might take too long for detecting
devices, resulting in the wifi detect call not seeing them.

This was observed on a bcm6348 with bcm4318 wifi. Adding a one second
pause was enough for b43 to expose the device.

SVN-Revision: 31639

package/base-files/files/etc/init.d/boot

@@ -71,6 +71,9 @@ start() {
 
 	load_modules /etc/modules.d/*
 
+	# allow wifi modules time to settle
+	sleep 1
+
 	/sbin/wifi detect > /tmp/wireless.tmp
 	[ -s /tmp/wireless.tmp ] && {
 		cat /tmp/wireless.tmp >> /etc/config/wireless