powerpc/85xx/qemu: Enable CONFIG_E500 and CONFIG_PPC_E500MC

The QEMU e500 board needs to enable CONFIG_E500 to correctly boot. QEMU
for ppc64 uses e5500/e6500 emulation, thus CONFIG_PPC_E500MC is required
as well.
Signed-off-by: NDavid Engraf <david.engraf@sysgo.com>
Signed-off-by: NScott Wood <oss@buserror.net>

arch/powerpc/platforms/85xx/Kconfig

@@ -253,6 +253,8 @@ endif # PPC32
 config PPC_QEMU_E500
 	bool "QEMU generic e500 platform"
 	select DEFAULT_UIMAGE
+	select E500
+	select PPC_E500MC if PPC64
 	help
 	  This option enables support for running as a QEMU guest using
 	  QEMU's generic e500 machine.  This is not required if you're