ARM64: zynqmp: Fix USB ulpi phy sequence

It should be enough to call low(5us)->high pulse for all cases
to provide proper reset. There is no need to call high->low->high.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/arm/cpu/armv8/zynqmp/spl.c

@@ -37,10 +37,6 @@ void board_init_f(ulong dummy)
 
 static void ps_mode_reset(ulong mode)
 {
-	writel(mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_VAL_SHIFT |
-	       mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_EN_SHIFT,
-	       &crlapb_base->boot_pin_ctrl);
-	udelay(1);
 	writel(mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_EN_SHIFT,
 	       &crlapb_base->boot_pin_ctrl);
 	udelay(5);