dt-bindings: clock: Add MMP3 compatible string

$id: http://devicetree.org/schemas/clock/marvell,mmp2-clock.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Marvell MMP2 Clock Controller

title: Marvell MMP2 and MMP3 Clock Controller

maintainers:

  - Lubomir Rintel <lkundrak@v3.sk>

description: |

  The MMP2 clock subsystem generates and supplies clock to various

  controllers within the MMP2 SoC.

  The clock subsystem on MMP2 or MMP3 generates and supplies clock to various

  controllers within the SoC.

  Each clock is assigned an identifier and client nodes use this identifier

  to specify the clock which they consume.

properties:

  compatible:

    const: marvell,mmp2-clock # controller compatible with MMP2 SoC

    enum:

      - marvell,mmp2-clock # controller compatible with MMP2 SoC

      - marvell,mmp3-clock # controller compatible with MMP3 SoC

  reg:

    items: