Since the gpr_init() function is common for boards using MX6S, MX6DL, MX6D,
MX6Q and MX6QP processors move it to the soc.c file.
Signed-off-by: NBreno Lima <breno.lima@nxp.com>
Acked-by: NStefano Babic <sbabic@denx.de>
Reviewed-by: NLukasz Majewski <lukma@denx.de>
Reviewed-by: NFabio Estevam <fabio.estevam@nxp.com>