sunxi: Fix PHY regression on A20-OLinuXino-Lime2 and A20-Olimex-SOM-EVB

sunxi: Fix PHY regression on A20-OLinuXino-Lime2 and A20-Olimex-SOM-EVB

When moving the PHYLIB PHY drivers around in Kconfig we did not at the
same time perform a careful migration of the related drivers and
sub-options.  This lead to the case where previously Kconfig-enabled
driver choices were now disabled on some platforms.  Correct this by
enabling both the PHY driver and sub-option on the above referenced
platforms.

Fixes: af2cbfd6b982 ("drivers: net: Provide Kconfig menu for PHYLIB")
Fixes: 8728c97eff5b ("configs: Re-sync")
Reported-by: Dario <dario86@tutamail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>