asoc: codecs: Update LPM voting support in codec supplies

For power saving during RBSC, need to vote for minimum
or zero current on load for respective regulator to
enter LPM mode. Add required support from audio WCD/WSA
to vote accordingly during suspend/resume.

Change-Id: I578195b84ba18a0b69dde3b93a3f6461efa85f7f
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>

asoc/codecs/wcd938x/internal.h

@@ -73,6 +73,7 @@ struct wcd938x_priv {
 	bool comp2_enable;
 	bool ldoh;
 	bool bcs_dis;
+	bool dapm_bias_off;
 	struct irq_domain *virq;
 	struct wcd_irq_info irq_info;
 	u32 rx_clk_cnt;