sdm: Add SPD information for HDMI

- Send SPI(source product information) to HDMI driver
- Vendor name and product descrpition information is passed to
  the HDMI device, which will be used by the TV to show the
  source information instead of INPUT1. INPUT2, etc.,

Change-Id: I2658ec39f95793e25f1fe36525cdc3701f9c64b3
diff --git a/sdm/include/utils/debug.h b/sdm/include/utils/debug.h
index c8a3a98..b4a286a 100644
--- a/sdm/include/utils/debug.h
+++ b/sdm/include/utils/debug.h
@@ -72,6 +72,7 @@
   static bool IsRotatorSplitDisabled();
   static bool IsScalarDisabled();
   static bool IsUbwcTiledFrameBuffer();
+  static bool GetProperty(const char *property_name, char *value);
 
  private:
   Debug();
@@ -91,6 +92,9 @@
     virtual DisplayError GetProperty(const char */*property_name*/, int */*value*/) {
       return kErrorNotSupported;
     }
+    virtual DisplayError GetProperty(const char */*property_name*/, char */*value*/) {
+      return kErrorNotSupported;
+    }
   };
 
   DefaultDebugHandler default_debug_handler_;