irqchip: gic-v3: Collection table support muti pages

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7CX6S
CVE: NA

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Only one page is allocated to the collection table.
Recalculate the page number of collection table based on the number of
CPUs.
Signed-off-by: Nwangwudi <wangwudi@hisilicon.com>

drivers/irqchip/irq-gic-v3-its.c

@@ -2665,6 +2665,10 @@ static int its_alloc_tables(struct its_node *its)
 			indirect = its_parse_indirect_baser(its, baser, &order,
 							    ITS_MAX_VPEID_BITS);
 			break;
+		case GITS_BASER_TYPE_COLLECTION:
+			indirect = its_parse_indirect_baser(its, baser, &order,
+							order_base_2(num_possible_cpus()));
+			break;
 		}
 
 		err = its_setup_baser(its, baser, cache, shr, order, indirect);