Previously, Internal Delay specification implied the delay be
applied to both TX and RX.  This patch allows for separate TX/RX-only
internal delay specification.
Signed-off-by: NKim Phillips <kim.phillips@freescale.com>
Tested-by: NAnton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: NLi Yang <leoli@freescale.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>