Platforms/ARM: Juno: set LAN9118 timeout PCD
Platforms/ARM: Juno: set LAN9118 timeout PCD

The LAN9118 driver in EDK2 has been updated to include a PCD for
over-riding the default auto-negotiation timeout.

The default setting of 4000us is not long enough for Juno, so set it to
40000.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ryan Harkin <26c24e1ad4aed8194be813aa696391b1ea0548f2@linaro.org>

jlinton/OpenPlatformPkg,hisilicon/OpenPlatformPkg,jlinton/OpenPlatformPkg,sunchenhui2015/estuary-20160606,sunchenhui2015/estuary-20160606,96boards/OpenPlatformPkg,96boards/OpenPlatformPkg,sunchenhui2015/estuary-20160606,hisilicon/OpenPlatformPkg,96boards/OpenPlatformPkg