Print wrong info in sample_encode on multiple graphic adapters environment

* Product version : MediaSamples 6.0.0.142
* Platform you are building on : Windows Server 2008 R2 + Intel HD Graphics 4600

If multiple graphic adapters are existed in PC and Intel graphic adapter is secondary device, sample_encode prints like below,

Media SDK impl : sw

This is wrong information because sample_encode had the success to initialize a mfxSession with MFX_IMPL_HARDWARE_ANY.
Sample_encode program must print like below,

Media SDK imple : hw

Current sample_encode prints 'hw' if only Intel Graphic adapter is default device. So, I would like to submit this patch. :)

MediaSamples_6.0.0.142/sample_encode/src/pipeline_encode.cpp
@@ -1581,7 +1581,10 @@ void CEncodingPipeline::PrintInfo()
     GetFirstSession().QueryIMPL(&impl);

     const msdk_char* sImpl = (MFX_IMPL_VIA_D3D11 == MFX_IMPL_VIA_MASK(impl)) ? MSDK_STRING("hw_d3d11")
-                     : (MFX_IMPL_HARDWARE & impl)  ? MSDK_STRING("hw")
+                     : (MFX_IMPL_HARDWARE  & impl) ? MSDK_STRING("hw1")
+                     : (MFX_IMPL_HARDWARE2 & impl) ? MSDK_STRING("hw2")
+                     : (MFX_IMPL_HARDWARE3 & impl) ? MSDK_STRING("hw3")
+                     : (MFX_IMPL_HARDWARE4 & impl) ? MSDK_STRING("hw4")
                                                    : MSDK_STRING("sw");
     msdk_printf(MSDK_STRING("Media SDK impl\t\t%s\n"), sImpl);