Currently LX2 board code uses arch_misc_init to set up the board mux on
RDB and QDS. Move this code to misc_init_r. This is consistent with LS
gen 2 and T series SoCs/boards.
Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>