dt-bindings: clock: imx8mp: Add ids for the audio shared gate

All these IDs are for one single HW gate (CCGR101) that is shared
between these root clocks.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Link: https://lore.kernel.org/r/1667811007-19222-2-git-send-email-shengjiu.wang@nxp.com