regmap: Fix typo in IRQ register striding

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index 502cbdb..4fac4b9 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -116,7 +116,7 @@
 	 * doing a write per register.
 	 */
 	for (i = 0; i < data->chip->num_regs; i++) {
-		ret = regmap_read(map, chip->mask_base + (i * map->reg_stride
+		ret = regmap_read(map, chip->status_base + (i * map->reg_stride
 				   * data->irq_reg_stride),
 				   &data->status_buf[i]);