SWDEV-379789 - Correct virtual function support information (#3154)

Change-Id: Ife63b2f4bb3ecdb7fed3b796bc3cd582c1b5ad20

docs/markdown/hip_kernel_language.md

@@ -862,8 +862,9 @@ Output Constraints are specified by an `"="` prefix as shown above ("=v"). This
 ## C++ Support
 The following C++ features are not supported:
 - Run-time-type information (RTTI)
-- Virtual functions
 - Try/catch
+- Virtual functions
+Virtual functions are not supported if objects containing virtual function tables are passed between GPU's of different offload arch's, e.g. between gfx906 and gfx1030. Otherwise virtual functions are supported.
 
 ## Kernel Compilation
 hipcc now supports compiling C++/HIP kernels to binary code objects.