soc: swr-mstr-ctrl: disable pcm out/in when all ports are disabled

PCM_DP_OUT/IN enable bit are used for any data_port which supports
word_length larger than 8. Disable these two bits only when all
the ports are disabled.

Change-Id: I2c65e7658bf90ae01203ebb1b15f14db581ffa55
Signed-off-by: Meng Wang <mengw@codeaurora.org>

soc/swr-mstr-ctrl.h

@@ -185,6 +185,7 @@ struct swr_mstr_ctrl {
 	struct clk *lpass_core_hw_vote;
 	struct clk *lpass_core_audio;
 	u8 num_usecase;
+	u32 pcm_enable_count;
 	u32 swr_irq_wakeup_capable;
 	int hw_core_clk_en;
 	int aud_core_clk_en;