ASoC: wm2000: Expose some more registers for diagnostics

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/wm2000.c b/sound/soc/codecs/wm2000.c
index f2ac38b..7fefd76 100644
--- a/sound/soc/codecs/wm2000.c
+++ b/sound/soc/codecs/wm2000.c
@@ -761,6 +761,8 @@
 	case WM2000_REG_SYS_CTL2:
 	case WM2000_REG_ANC_STAT:
 	case WM2000_REG_IF_CTL:
+	case WM2000_REG_ANA_MIC_CTL:
+	case WM2000_REG_SPK_CTL:
 		return true;
 	default:
 		return false;
@@ -771,7 +773,7 @@
 	.reg_bits = 16,
 	.val_bits = 8,
 
-	.max_register = WM2000_REG_IF_CTL,
+	.max_register = WM2000_REG_SPK_CTL,
 	.readable_reg = wm2000_readable_reg,
 };