imx8mp_evk: spl: drop useless code

Drop useless getting ccm device, there is no need to explicted do this
in board code, and we not enable SPL CLK currently.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
1 file changed