ARM: dts: berlin: change BG2Q's USB PHY compatible

ARM: dts: berlin: change BG2Q's USB PHY compatible

commit 1f744fd317dc55cadd7132c57c499e3117aea01d upstream.

Currently, BG2Q shares a compatible with BG2. This is incorrect, since
BG2 and BG2Q use different USB PLL dividers. In reality, BG2Q shares a
divider with BG2CD. Change BG2Q's USB PHY compatible string to reflect
that.

Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>