In case of multi-phy PHY providers, each PHY should be modeled as a sub
node of the PHY provider. Then each PHY will have a different node pointer
(node pointer of sub node) than that of PHY provider. Added this provision
in the PHY core.
Also fixed all drivers to use the updated API.
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Acked-by: NLee Jones <lee.jones@linaro.org>