target-ppc: Allow more page sizes for POWER7 & POWER8 in TCG
Now that the TCG and spapr code has been extended to allow (semi-)
arbitrary page encodings in the CPU's 'sps' table, we can add the many
page sizes supported by real POWER7 and POWER8 hardware that we previously
didn't support in TCG.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Alexander Graf <agraf@suse.de>