[UPSTREAM] usb: gadget: tegra-xudc: Fix CNT65 configuration

https://lore.kernel.org/linux-tegra/20260921-tegra-usb-v1-5-74a925a35d82@nvidia.com/

drivers/usb/gadget/udc/tegra-xudc.c

@@ -642,7 +642,7 @@ static void tegra_xudc_limit_port_speed(struct tegra_xudc *xudc)
 	val = xudc_readl(xudc, SSPX_CORE_CNT65);
 	val &= ~(SSPX_CORE_CNT65_TX_SCD_END_TRPT_MID_MASK);
 	val |= SSPX_CORE_CNT65_TX_SCD_END_TRPT_MID(0x4B0);
-	xudc_writel(xudc, val, SSPX_CORE_CNT66);
+	xudc_writel(xudc, val, SSPX_CORE_CNT65);
 
 	val = xudc_readl(xudc, SSPX_CORE_CNT66);
 	val &= ~(SSPX_CORE_CNT66_TX_SCD_BIT0_TRPT_MID_MASK);