dev: pmic: add mvs support

Add support for MVS1 to enable HDMI

Change-Id: I39b272f34b07a37a9889d139e24148f4a6b3542c
diff --git a/dev/pmic/pm8x41/pm8x41.c b/dev/pmic/pm8x41/pm8x41.c
index 169994a..326505a 100644
--- a/dev/pmic/pm8x41/pm8x41.c
+++ b/dev/pmic/pm8x41/pm8x41.c
@@ -390,6 +390,13 @@
 	return REG_READ(PON_POFF_REASON2);
 }
 
+void pm8x41_enable_mvs(struct pm8x41_mvs *mvs, enum mvs_en_ctl enable)
+{
+	ASSERT(mvs);
+
+	REG_WRITE(mvs->base + MVS_EN_CTL, enable << MVS_EN_CTL_ENABLE_SHIFT);
+}
+
 void pm8x41_enable_mpp(struct pm8x41_mpp *mpp, enum mpp_en_ctl enable)
 {
 	ASSERT(mpp);