Add PowerPC 64 target for tests.

As no PowerPC 64 CPU is implemented, this target can just be used to check that
there is no difference between PowerPC 32 & PowerPC 64 used in 32 bits mode.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2483 c046a42c-6fe2-441c-8c8c-71466251a162

configure

@@ -412,7 +412,7 @@ fi
 if test -z "$target_list" ; then
 # these targets are portable
     if [ "$softmmu" = "yes" ] ; then
-        target_list="i386-softmmu ppc-softmmu sparc-softmmu x86_64-softmmu mips-softmmu mipsel-softmmu arm-softmmu"
+        target_list="i386-softmmu ppc-softmmu sparc-softmmu x86_64-softmmu mips-softmmu mipsel-softmmu arm-softmmu ppc64-softmmu"
     fi
 # the following are Linux specific
     if [ "$linux_user" = "yes" ] ; then