configs: imx8mn_evk: drop unused SDHC macro

With SPL_DM_MMC and DM_MMC, the two macros not needed, drop it.
 #define CONFIG_SYS_FSL_USDHC_NUM       2
 #define CONFIG_SYS_FSL_ESDHC_ADDR      0

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