tsec: fix link detection for the RTL8211B PHY

RTL8211B sets link state register after autonegotiation complete,
so with bootdelay=0 RTL8211B will report lack of the link.

To fix this, we should wait for aneg to complete, even if the
link is currently down.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>