Specify Ethernet PHY IRQs in the Condor/V3HSK board device trees, now that
we have the GPIO support (previously phylib had to resort to polling).
Based on the original (and large) patch by Vladimir Barinov.
Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>