Convert CONFIG_PCIE1 et al to Kconfig

This converts the following to Kconfig:
   CONFIG_PCIE1
   CONFIG_PCIE2
   CONFIG_PCIE3
   CONFIG_PCIE4
   CONFIG_PCI1

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/ls1021atsn_sdcard_defconfig b/configs/ls1021atsn_sdcard_defconfig
index 4d72c25..64266af 100644
--- a/configs/ls1021atsn_sdcard_defconfig
+++ b/configs/ls1021atsn_sdcard_defconfig
@@ -20,6 +20,8 @@
 CONFIG_SYS_LOAD_ADDR=0x82000000
 CONFIG_AHCI=y
 CONFIG_LAYERSCAPE_NS_ACCESS=y
+CONFIG_PCIE1=y
+CONFIG_PCIE2=y
 CONFIG_DISTRO_DEFAULTS=y
 CONFIG_FIT=y
 CONFIG_OF_BOARD_SETUP=y