Move CONFIG_PHY_ADDR to Kconfig

CONFIG_PHY_ADDR is used for old-style configuration. This makes
impossible changing the PHY address, if multiple boards share a same
config header file (for example include/configs/sunxi-common.h).

Moving this to Kconfig helps overcoming this issue. It's defined
as entry inside PHYLIB section.

After the implemention, moveconfig was run. The issues are:
	- edb9315a	- CONFIG_PHYLIB is not enabled. Entry is
			  deleted.

	- ds414		- CONFIG_PHYLIB is in incompatible format:
			  { 0x1, 0x0 }. This entry is also deleted.

	- devkit3250	- The PHY_ADDR is in hex format (0x1F).
			  Manually CONFIG_PHY_ADDR=31 is added in
			  the defconfig.

After the changes the suspicious defconfigs passes building.

Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
[jagan: rebased on master]
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
diff --git a/configs/khadas-vim_defconfig b/configs/khadas-vim_defconfig
index a0b3f8d..f4674ef 100644
--- a/configs/khadas-vim_defconfig
+++ b/configs/khadas-vim_defconfig
@@ -20,6 +20,7 @@
 CONFIG_DM_GPIO=y
 CONFIG_DM_MMC=y
 CONFIG_MMC_MESON_GX=y
+CONFIG_PHY_ADDR=8
 CONFIG_PHY_MESON_GXL=y
 CONFIG_DM_ETH=y
 CONFIG_ETH_DESIGNWARE=y