ARM: dts: imx: Fix the assigned-clock mismatch issue on imx6q/dl

The 'assigned-clock-parents' and 'assigned-clock-rates' list
should corresponding to the 'assigned-clocks' property clock list.

Signed-off-by: Bai Ping <b51503@freescale.com>
Fixes: ed339363 ("ARM: dts: imx6qdl-sabreauto: Allow HDMI and LVDS to work simultaneously")
Cc: <stable@vger.kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>