mfd: arizona: Document HP_CTRL_1L and HP_CTRL_1R registers

These registers are documented in the datasheet and used as part of the
extcon driver. Expose them properly through regmap as the datasheet
notes they should be treated as volatile do so.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
diff --git a/drivers/mfd/wm5110-tables.c b/drivers/mfd/wm5110-tables.c
index 4642b5b..c75390a 100644
--- a/drivers/mfd/wm5110-tables.c
+++ b/drivers/mfd/wm5110-tables.c
@@ -1790,6 +1790,8 @@
 	case ARIZONA_MIC_BIAS_CTRL_1:
 	case ARIZONA_MIC_BIAS_CTRL_2:
 	case ARIZONA_MIC_BIAS_CTRL_3:
+	case ARIZONA_HP_CTRL_1L:
+	case ARIZONA_HP_CTRL_1R:
 	case ARIZONA_ACCESSORY_DETECT_MODE_1:
 	case ARIZONA_HEADPHONE_DETECT_1:
 	case ARIZONA_HEADPHONE_DETECT_2:
@@ -2825,6 +2827,8 @@
 	case ARIZONA_ASYNC_SAMPLE_RATE_1_STATUS:
 	case ARIZONA_ASYNC_SAMPLE_RATE_2_STATUS:
 	case ARIZONA_MIC_DETECT_3:
+	case ARIZONA_HP_CTRL_1L:
+	case ARIZONA_HP_CTRL_1R:
 	case ARIZONA_HEADPHONE_DETECT_2:
 	case ARIZONA_INPUT_ENABLES_STATUS:
 	case ARIZONA_OUTPUT_STATUS_1: