feat(opencl/bazel): support bazel build with ocl only

how to use: bazel xxxxx --define enable_opencl_build_only=1

GitOrigin-RevId: 8badb8dc1306a05a73a465321e34f212a74620ae

dnn/src/common/handle.cpp

@@ -2,7 +2,9 @@
 
 #include "src/common/handle_impl.h"
 #include "src/common/utils.h"
+#if !MGE_BUILD_CL_ONLY
 #include "src/fallback/handle.h"
+#endif
 #include "src/naive/handle.h"
 
 #include "midout.h"

dnn/src/common/nchw_nchwxx_valid.h

 #pragma once
 #include "megdnn/oprs.h"
+
+#if !MGE_BUILD_CL_ONLY
 #include "src/fallback/conv_bias/opr_impl.h"
+#endif
+
 namespace megdnn {
+#if MGE_BUILD_CL_ONLY
+using NonlineMode = ConvBias::Param::NonlineMode;
+using BiasMode = ConvBiasForward::BiasMode;
+#endif
 namespace {
 enum NchwNchwxxType {
     NCHW44_FP32,
@@ -173,4 +181,4 @@ inline bool nchw_nchwxx_valid<NCHW88_FP16>(
 #endif
 
 }  // namespace
-}  // namespace megdnn
\ No newline at end of file
+}  // namespace megdnn