Update the SPC1920 CMB PLD driver


diff --git a/board/spc1920/pld.h b/board/spc1920/pld.h
index 3254f82..5beb71b 100644
--- a/board/spc1920/pld.h
+++ b/board/spc1920/pld.h
@@ -5,8 +5,8 @@
 	uchar com1_en;
 	uchar dsp_reset;
 	uchar dsp_hpi_on;
+	uchar superv_mode;
 	uchar codec_dsp_power_en;
-	uchar clk2_en;
 	uchar clk3_select;
 	uchar clk4_select;
 } spc1920_pld_t;