[POWERPC] Fix STRICT_MM_TYPECHECKS

Since we don't have it active by default, the STRICT_MM_TYPECHECKS
option has bitrotted again.  This patch fixes a couple of simple build
fixes if the option is selected.  First, pud_t mustn't be defined in
page.h on 32-bit systems, because it conflicts with the version in the
generic pud-folding code.  Second, pci_32.c is missing a __pgprot()
wrapper call.  Third, a couple of PS3 files use constants of type
pgprot_t when they need the raw values, we add pgprot_val() calls to
fix this.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/platforms/ps3/spu.c

@@ -184,7 +184,7 @@ static int __init setup_areas(struct spu *spu)
 
 	spu_pdata(spu)->shadow = __ioremap(
 		spu_pdata(spu)->shadow_addr, sizeof(struct spe_shadow),
-		PAGE_READONLY | _PAGE_NO_CACHE | _PAGE_GUARDED);
+		pgprot_val(PAGE_READONLY) | _PAGE_NO_CACHE | _PAGE_GUARDED);
 	if (!spu_pdata(spu)->shadow) {
 		pr_debug("%s:%d: ioremap shadow failed\n", __func__, __LINE__);
 		goto fail_ioremap;