* Clock bindings for NXP i.MX8M Quad

Required properties:
- compatible: Should be "fsl,imx8mq-ccm"
- reg: Address and length of the register set
- #clock-cells: Should be <1>
- clocks: list of clock specifiers, must contain an entry for each required
          entry in clock-names
- clock-names: should include the following entries:
    - "ckil"
    - "osc_25m"
    - "osc_27m"
    - "clk_ext1"
    - "clk_ext2"
    - "clk_ext3"
    - "clk_ext4"

The clock consumer should specify the desired clock by having the clock
ID in its "clocks" phandle cell.  See include/dt-bindings/clock/imx8mq-clock.h
for the full list of i.MX8M Quad clock IDs.