thunderbolt: Explicitly reset plug events delay back to USB4 spec value

If any software has interacted with the USB4 registers before the Linux
USB4 CM runs, it may have modified the plug events delay. It has been
observed that if this value too large, it's possible that hotplugged
devices will negotiate a fallback mode instead in Linux.

To prevent this, explicitly align the plug events delay with the USB4
spec value of 10ms.

Cc: [email protected]
Signed-off-by: Mario Limonciello <[email protected]>
Signed-off-by: Mika Westerberg <[email protected]>

Author: superm1

drivers/thunderbolt/switch.c

@@ -2413,6 +2413,7 @@ int tb_switch_configure(struct tb_switch *sw)
 		 * additional capabilities.
 		 */
 		sw->config.cmuv = USB4_VERSION_1_0;
+		sw->config.plug_events_delay = 0xa;
 
 		/* Enumerate the switch */
 		ret = tb_sw_write(sw, (u32 *)&sw->config + 1, TB_CFG_SWITCH,