imx8mp_evk: spl: drop timer_init

timer_init has been invoked in arch_cpu_init, no need to invoke
it again in board code.
Signed-off-by: NPeng Fan <peng.fan@nxp.com>
Signed-off-by: NFabio Estevam <festevam@gmail.com>

board/freescale/imx8mp_evk/spl.c

@@ -114,8 +114,6 @@ void board_init_f(ulong dummy)
 
 	board_early_init_f();
 
-	timer_init();
-
 	preloader_console_init();
 
 	/* Clear the BSS. */