Print the vaapi error name string instead of the vaapi status integer for better clarity if a vaapi failure occurs (#182)

src/rocdecode/vaapi/vaapi_videodecoder.h

@@ -37,7 +37,7 @@ THE SOFTWARE.
 #define CHECK_VAAPI(call) {\
     VAStatus va_status = call;\
     if (va_status != VA_STATUS_SUCCESS) {\
-        std::cout << "VAAPI failure: " << #call << " failed with 'status# " << va_status << "' at " <<  __FILE__ << ":" << __LINE__ << std::endl;\
+        std::cout << "VAAPI failure: " << #call << " failed with 'status: " << vaErrorStr(va_status) << "' at " <<  __FILE__ << ":" << __LINE__ << std::endl;\
         return ROCDEC_RUNTIME_ERROR;\
     }\
 }