thunderbolt: Runtime resume USB4 port when retimers are scanned

thunderbolt: Runtime resume USB4 port when retimers are scanned

BugLink: https://bugs.launchpad.net/bugs/1955016
Sometimes when plugging in a USB4 device we might see following error:

  thunderbolt 1-0:3.1: runtime PM trying to activate child device 1-0:3.1 but parent (usb4_port3) is not active

This happens because the parent USB4 port was still runtime suspended.
Fix this by runtime resuming the USB4 port before scanning the retimers
below it.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
(cherry picked from commit 1e56c88adecc2dfe14973fa47898861a839e62d4)
Signed-off-by: Chia-Lin Kao (AceLan) <acelan.kao@canonical.com>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>