The function tcphy_phy_init() could return an error but the callers
weren't checking the return value.  They should.  In at least one case
while testing I saw the message "wait pma ready timeout" which
indicates that tcphy_phy_init() really could return an error and we
should account for it.
Signed-off-by: NDouglas Anderson <dianders@chromium.org>
Reviewed-by: NGuenter Roeck <groeck@chromium.org>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>