microblaze: Enable PHYLIB via Kconfig

Cleanup board configuration.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

configs/microblaze-generic_defconfig

@@ -10,5 +10,6 @@ CONFIG_CMD_GPIO=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_SPL_OF_CONTROL=y
 CONFIG_OF_EMBED=y
+CONFIG_PHYLIB=y
 CONFIG_SYS_NS16550=y
 CONFIG_XILINX_UARTLITE=y

include/configs/microblaze-generic.h

@@ -336,7 +336,6 @@
 # define CONFIG_CMD_MII		1
 # define CONFIG_PHY_GIGE	1
 # define CONFIG_SYS_FAULT_ECHO_LINK_DOWN	1
-# define CONFIG_PHYLIB		1
 # define CONFIG_PHY_ATHEROS	1
 # define CONFIG_PHY_BROADCOM	1
 # define CONFIG_PHY_DAVICOM	1
@@ -349,7 +348,6 @@
 #else
 # undef CONFIG_MII
 # undef CONFIG_CMD_MII
-# undef CONFIG_PHYLIB
 #endif
 
 /* SPL part */