brcm47xx: activate ARP daemon support

This just add some bytes to the kernel and is activated on other targets.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38388 3c298f89-4303-0410-b956-a3cf2f4a3e73
iputils: do not compile this for brcm47xx with -O2

ping is now working for me with -Os on brcm47xx.
This revert r26278.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38389 3c298f89-4303-0410-b956-a3cf2f4a3e73