hw/phb4: Print the PEs in the EEH dump in hex

Linux always displays the PE number in hexidecimal while skiboot
displays the PEST index (PE number) in decimal. This makes correlating
errors between Skiboot and Linux more annoying than it should be so
this patch makes Skiboot print the PEST number in hex.

Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>

hw/phb4.c

@@ -2015,7 +2015,7 @@ static void phb4_eeh_dump_regs(struct phb4 *p)
 	for (i = 0; i < OPAL_PHB4_NUM_PEST_REGS; i++) {
 		if (!s->pestA[i] && !s->pestB[i])
 			continue;
-		PHBERR(p, "               PEST[%03d] = %016llx %016llx\n",
+		PHBERR(p, "               PEST[%03x] = %016llx %016llx\n",
 		       i, s->pestA[i], s->pestB[i]);
 	}
 	free(s);