target: msm8994: set the correct parent for DSI RCG clocks

The parent of DSI RCG clocks can be either DSI0 PLL or DSI1 PLL
based on the use case. In the current implementation, the parent
is always set to DSI0 PLL. Add change to set the parent correctly
based on the PLL used.

Change-Id: I72c7c96b23663b205fccbd920e839acf85b36cd6
diff --git a/platform/msm8994/include/platform/clock.h b/platform/msm8994/include/platform/clock.h
index 72d9787..ac611eb 100644
--- a/platform/msm8994/include/platform/clock.h
+++ b/platform/msm8994/include/platform/clock.h
@@ -79,6 +79,7 @@
 #define DSI_PIXEL0_D                    REG_MM(0x2010)
 
 #define DSI0_PHY_PLL_OUT                BIT(8)
+#define DSI1_PHY_PLL_OUT                BIT(9)
 #define PIXEL_SRC_DIV_1_5               BIT(1)
 
 #define DSI_BYTE1_CMD_RCGR              REG_MM(0x2140)
@@ -122,7 +123,7 @@
 void clock_ce_disable(uint8_t instance);
 void clock_usb30_init(void);
 
-void mmss_dsi_clock_enable(uint32_t dsi_pixel0_cfg_rcgr, uint32_t dual_dsi,
+void mmss_dsi_clock_enable(uint32_t cfg_rcgr, uint32_t dual_dsi,
 	uint8_t pclk0_m, uint8_t pclk0_n, uint8_t pclk0_d);
 void mmss_dsi_clock_disable(uint32_t dual_dsi);
 void mmss_bus_clock_enable(void);