linux-phytec-fsl

MLK-11390-4 ARM: imx: remove CLK_SET_PARENT_GATE for bus mux

For some bus mux, need to remove CLK_SET_PARENT_GATE
flag as they can NOT be disabled, and they are only
used by bus-freq and the asm code already follow the
correct sequence of changing parent, so we can remove
CLK_SET_PARENT_GATE flag to avoid set parent fail
after bus-freq transition done.

Signed-off-by: Anson Huang <b20788@freescale.com>