Convert CONFIG_KIRKWOOD_PCIE_INIT et al to Kconfig

This converts the following to Kconfig:
   CONFIG_KIRKWOOD_EGIGA_INIT
   CONFIG_KIRKWOOD_PCIE_INIT
   CONFIG_KIRKWOOD_RGMII_PAD_1V8
   CONFIG_KM_DISABLE_PCIE

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/kmcoge5un_defconfig b/configs/kmcoge5un_defconfig
index 9654b8d..8b54f9c 100644
--- a/configs/kmcoge5un_defconfig
+++ b/configs/kmcoge5un_defconfig
@@ -7,6 +7,7 @@
 CONFIG_SYS_TEXT_BASE=0x07d00000
 CONFIG_SYS_MALLOC_F_LEN=0x400
 CONFIG_TARGET_KM_KIRKWOOD=y
+# CONFIG_KIRKWOOD_PCIE_INIT is not set
 CONFIG_ENV_SIZE=0x2000
 CONFIG_ENV_OFFSET=0xC0000
 CONFIG_ENV_SECT_SIZE=0x10000