am33xx: Drop timer_init call from s_init

In both SPL and non-SPL cases we will make a call to timer_init() early
on and do not need to call it again within s_init().

Signed-off-by: Tom Rini <trini@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/arm/cpu/armv7/am33xx/board.c

@@ -294,7 +294,6 @@ void s_init(void)
 	save_omap_boot_params();
 #endif
 	watchdog_disable();
-	timer_init();
 	set_uart_mux_conf();
 	setup_clocks_for_console();
 	uart_soft_reset();