mpc83xx: Migrate legacy PCI options to Kconfig

The MPC83xx include files contain some settings of the PCI subsystem.

Migrate these to Kconfig until a proper DM PCI driver exists.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
diff --git a/configs/vme8349_defconfig b/configs/vme8349_defconfig
index a7d81a3..90c29b7 100644
--- a/configs/vme8349_defconfig
+++ b/configs/vme8349_defconfig
@@ -2,6 +2,7 @@
 CONFIG_SYS_TEXT_BASE=0xFFF00000
 CONFIG_MPC83xx=y
 CONFIG_TARGET_VME8349=y
+CONFIG_PCI_64BIT=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
 CONFIG_BOOTDELAY=6