am33xx: Remove serial_init in s_init for QSPI/NOR XIP boot

serial_init() reads global_data, since global_data is not yet
initialized, this can cause unwanted behaviour leading to QSPI XIP boot
hang. Also, since serial_init() is anyways called later from
boar_init_f(), it does not make sense to do the same in s_init().

Tested on AM437x IDK EVM with QSPI XIP boot.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

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

@@ -273,12 +273,6 @@ void s_init(void)
 	set_uart_mux_conf();
 	setup_clocks_for_console();
 	uart_soft_reset();
-#if defined(CONFIG_NOR_BOOT) || defined(CONFIG_QSPI_BOOT)
-	/* TODO: This does not work, gd is not available yet */
-	gd->baudrate = CONFIG_BAUDRATE;
-	serial_init();
-	gd->have_console = 1;
-#endif
 #if defined(CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC)
 	/* Enable RTC32K clock */
 	rtc32k_enable();