Bug rocblas int8 (#767)

* fix the flag in rocblas api for int8 data type

* used different flag for different rocblas versions

* clang format
Co-authored-by: mvermeulen <5479696+mvermeulen@users.noreply.github.com>

src/targets/gpu/gemm_impl.cpp

@@ -108,7 +108,11 @@ void gemm_impl(
                            compute_type,
                            rocblas_gemm_algo_standard,
                            0,
+#if ROCBLAS_VERSION_MAJOR >= 2 && ROCBLAS_VERSION_MINOR >= 38
+                           rocblas_gemm_flags_pack_int8x4);
+#else
                            0);
+#endif
         }
         else
         {
@@ -141,7 +145,11 @@ void gemm_impl(
                            compute_type,
                            rocblas_gemm_algo_standard,
                            0,
+#if ROCBLAS_VERSION_MAJOR >= 2 && ROCBLAS_VERSION_MINOR >= 38
+                           rocblas_gemm_flags_pack_int8x4);
+#else
                            0);
+#endif
         }
     });
 }