powerpc/lpar/debug: Initialize flags before printing debug message

With enabled DEBUG, there is a compile error:
"error: ‘flags’ is used uninitialized in this function".

This moves pr_devel() little further where @flags are initialized.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/platforms/pseries/lpar.c

@@ -306,14 +306,14 @@ static long pSeries_lpar_hpte_updatepp(unsigned long slot,
 
 	want_v = hpte_encode_avpn(vpn, psize, ssize);
 
-	pr_devel("    update: avpnv=%016lx, hash=%016lx, f=%lx, psize: %d ...",
-		 want_v, slot, flags, psize);
-
 	flags = (newpp & 7) | H_AVPN;
 	if (mmu_has_feature(MMU_FTR_KERNEL_RO))
 		/* Move pp0 into bit 8 (IBM 55) */
 		flags |= (newpp & HPTE_R_PP0) >> 55;
 
+	pr_devel("    update: avpnv=%016lx, hash=%016lx, f=%lx, psize: %d ...",
+		 want_v, slot, flags, psize);
+
 	lpar_rc = plpar_pte_protect(flags, slot, want_v);
 
 	if (lpar_rc == H_NOT_FOUND) {