When QEMU was configured with --enable-debug-tcg,
compilation fails in spr_write_booke206_mmucsr0() and in
spr_write_booke_pid(). Similar changes are also needed
in conditional code which is normally unused.

Cc: Alexander Graf <agraf@suse.de>
Signed-off-by: NStefan Weil <weil@mail.berlios.de>
Signed-off-by: NAlexander Graf <agraf@suse.de>