A longer link startup timeout is required when certain PCI switches are
attached to the root complex. This was tested with a Pericom switch
and a PLX switch.
Signed-off-by: Marek Vasut <marex@denx.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Tim Harvey <tharvey@gateworks.com> Acked-by: Shawn Guo <shawn.guo@linaro.org>(cherry picked from commit 017f10e1c78e14d48be7a28f2c33a32dae15fee5)