ARM: rmobile: Enable Micrel KSZ90x1 PHY driver on ULCB

Enable the Micrel KSZ90x1 driver on ULCB, since the board is populated
with KSZ9031 and without this driver, the PHY cannot be operated.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

configs/r8a7795_ulcb_defconfig

@@ -31,6 +31,8 @@ CONFIG_DM_GPIO=y
 CONFIG_RCAR_GPIO=y
 CONFIG_DM_MMC=y
 CONFIG_MMC_UNIPHIER=y
+CONFIG_PHY_MICREL=y
+CONFIG_PHY_MICREL_KSZ90X1=y
 CONFIG_DM_ETH=y
 CONFIG_RENESAS_RAVB=y
 CONFIG_PINCTRL=y

configs/r8a7796_ulcb_defconfig

@@ -32,6 +32,8 @@ CONFIG_DM_GPIO=y
 CONFIG_RCAR_GPIO=y
 CONFIG_DM_MMC=y
 CONFIG_MMC_UNIPHIER=y
+CONFIG_PHY_MICREL=y
+CONFIG_PHY_MICREL_KSZ90X1=y
 CONFIG_DM_ETH=y
 CONFIG_RENESAS_RAVB=y
 CONFIG_PINCTRL=y

include/configs/ulcb.h

@@ -33,7 +33,6 @@
 /* use to RPC(SPI Multi I/O Bus Controller) */
 
 /* Ethernet RAVB */
-#define CONFIG_PHY_MICREL
 #define CONFIG_BITBANGMII
 #define CONFIG_BITBANGMII_MULTI