[mlir][Linalg] Conv ops lowering to std calls added.

Lowering of newly defined Conv ops in TC syntax to standard
dialect is not supported and therefore this commit adds support
for it.

Differential Revision: https://reviews.llvm.org/D84840

mlir/lib/Conversion/LinalgToStandard/LinalgToStandard.cpp

@@ -244,7 +244,16 @@ void mlir::populateLinalgToStandardConversionPatterns(
       LinalgOpConversion<DotOp>,
       LinalgOpConversion<BatchMatmulOp>,
       LinalgOpConversion<MatvecOp>,
-      LinalgOpConversion<MatmulOp>>(ctx);
+      LinalgOpConversion<MatmulOp>,
+      LinalgOpConversion<ConvWOp>,
+      LinalgOpConversion<ConvNWCOp>,
+      LinalgOpConversion<ConvNCWOp>,
+      LinalgOpConversion<ConvHWOp>,
+      LinalgOpConversion<ConvNHWCOp>,
+      LinalgOpConversion<ConvNCHWOp>,
+      LinalgOpConversion<ConvDHWOp>,
+      LinalgOpConversion<ConvNDHWCOp>,
+      LinalgOpConversion<ConvNCDHWOp>>(ctx);
   // clang-format on
 }