Move PHYLIB to Kconfig

Signed-off-by: Alexandru Gagniuc <alex.g@adaptrum.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/configs/pepper_defconfig b/configs/pepper_defconfig
index 106be0d..08db1ad 100644
--- a/configs/pepper_defconfig
+++ b/configs/pepper_defconfig
@@ -40,6 +40,7 @@
 CONFIG_ISO_PARTITION=y
 CONFIG_EFI_PARTITION=y
 CONFIG_MMC_OMAP_HS=y
+CONFIG_PHYLIB=y
 CONFIG_SYS_NS16550=y
 CONFIG_FAT_WRITE=y
 CONFIG_OF_LIBFDT=y