HIP: Disable ROCWMMA fattn on CDNA when compiled against ROCWMMA 2.0.0 (#16221)

* HIP: Disable ROCWMMA fatt on CDNA when compiled against ROCWMMA 2.0.0

rocwmma 2.0.0 includes a bug in the code fakeing fp16 accumulation on CDNA

* CUDA: Fix volta condition in ggml_cuda_should_use_wmma_fattn

ggml/src/ggml-hip/CMakeLists.txt

@@ -39,12 +39,6 @@ endif()
 find_package(hip     REQUIRED)
 find_package(hipblas REQUIRED)
 find_package(rocblas REQUIRED)
-if (GGML_HIP_ROCWMMA_FATTN)
-    CHECK_INCLUDE_FILE_CXX("rocwmma/rocwmma.hpp" FOUND_ROCWMMA)
-    if (NOT ${FOUND_ROCWMMA})
-        message(FATAL_ERROR "rocwmma has not been found")
-    endif()
-endif()
 
 if (${hip_VERSION} VERSION_LESS 6.1)
     message(FATAL_ERROR "At least ROCM/HIP V6.1 is required")
@@ -117,10 +111,6 @@ if (NOT GGML_HIP_MMQ_MFMA)
     add_compile_definitions(GGML_HIP_NO_MMQ_MFMA)
 endif()
 
-if (GGML_HIP_FORCE_ROCWMMA_FATTN_GFX12 OR ${hip_VERSION} VERSION_GREATER_EQUAL 7.0)
-    add_compile_definitions(GGML_HIP_ROCWMMA_FATTN_GFX12)
-endif()
-
 if (GGML_HIP_EXPORT_METRICS)
     set(CMAKE_HIP_FLAGS "${CMAKE_HIP_FLAGS} -Rpass-analysis=kernel-resource-usage --save-temps")
 endif()