misc fixes

* fix phase adjustment
* fix HDMI AVI infoframe checksum calculation
* reduce passthru OSD size

software/sys_controller/it6613/it6613_drv.c

@@ -3326,7 +3326,7 @@ SetAVIInfoFrame(AVI_InfoFrame *pAVIInfoFrame)
     Switch_HDMITX_Bank(1) ;
     for(i = 0,ucData = 0; i < AVI_INFOFRAME_LEN ; i++)
     {
-        HDMITX_WriteI2C_Byte(REG_TX_AVIINFO_DB1+i,pAVIInfoFrame->pktbyte.AVI_DB[i]);
+        HDMITX_WriteI2C_Byte(REG_TX_AVIINFO_DB1+i+(i>=5),pAVIInfoFrame->pktbyte.AVI_DB[i]);
         ucData -= pAVIInfoFrame->pktbyte.AVI_DB[i] ;
     }
 	ErrorF("SetAVIInfo(): ") ;

software/sys_controller/it6613/typedef.h

@@ -326,8 +326,8 @@ typedef union _HDR_InfoFrame {
         BYTE Ver ;
         BYTE Len ;
 
-        BYTE TF ; // vendor name character in 7bit ascii characters
-        BYTE DESC_ID ; // product description character in 7bit ascii characters
+        BYTE TF ;
+        BYTE DESC_ID ;
         BYTE DESC[24] ;
     } info ;
     struct {