brcm63xx: prevent usb clock state inconsistency on BCM6318

Return the same clock for usbh and usbd on BCM6318 to prevent the clock
getting disabled despite being supposed to be enabled, e.g. by the
following sequence:

	clk_enable(usbh); <- usbh->usage = 1, enabled
	clk_enable(usbd); <- usbd->usage = 1, enabled (no effect)
	clk_disable(usbd); <- usbd->usage = 0,  -> disabled!

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39321 3c298f89-4303-0410-b956-a3cf2f4a3e73
brcm63xx: BCM6318 needs to select _HAS_OHCI/EHCI too

USB will fail to work if compiling with BCM6318 only if BCM63XX_HAS_EHCI
and BCM63XX_HAS_OHCI are not selected.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39322 3c298f89-4303-0410-b956-a3cf2f4a3e73
brcm63xx: add USB support for BCM63268

Add and enable USB support for the BCM63268 family of SoCs.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39323 3c298f89-4303-0410-b956-a3cf2f4a3e73
brcm63xx: allow setting the number of usb host ports for boards

Allow setting the number of available usb host ports for boards with
additional sanity checks to allow using the second port on devices
where it is available.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39324 3c298f89-4303-0410-b956-a3cf2f4a3e73
brcm63xx: set usb host port number for some devices

Update a few devices with their actual port numbers, especially those
with two ports.

Should allow properly using the second port on the Neufboxen and HW553
and HW556.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39325 3c298f89-4303-0410-b956-a3cf2f4a3e73