FC supports all variants of Conv2D so re-write all suitable Convs as FC #4860

Job	Run time
build-and-test / cmake-linux-riscv64	7m 34s
build-and-test / cmake-linux-armhf	1m 22s
build-and-test / cmake-linux-aarch64	1m 8s
build-and-test / cmake-linux-riscv64-rvv	6m 35s
build-and-test / cmake-linux-x86_64	4m 24s
build-and-test / bazel-linux-aarch64-clang18	1m 14s
build-and-test / bazel-linux-aarch64-gcc13	1m 5s
build-and-test / bazel-linux-x86_64-clang-18	4m 21s
build-and-test / cmake-android (arm64)	4m 10s
build-and-test / cmake-ios-arm64	4m 12s
build-and-test / cmake-android (armv7)	5m 5s
build-and-test / cmake-ios-x86_64	8m 2s
build-and-test / bazel-linux-x86_64-gcc-9	4m 49s
build-and-test / cmake-android (x86)	1m 20s
build-and-test / cmake-macos-arm64	1m 11s
build-and-test / cmake-windows-arm64	1m 10s
build-and-test / cmake-windows-x64	1m 30s
build-and-test / cmake-windows-x86	4m 25s
	1h 3m 37s

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