On bcm53xx we still need usb-ohci to support USB 1.1 devices and it
obviously needs bcma-hcd.ko that will init controller and register
platform device.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

Backport of r45994

git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@45996 3c298f89-4303-0410-b956-a3cf2f4a3e73