Fix fl_dependent_option with value definition #401

Job	Run time
Build WebAssembly libraries with Emscripten compilers + Flashlight core + stub backend	34s
Build on ubuntu-22.04 \| tensor: ArrayFire \| autograd: oneDNN \| distributed: Stub	9m 48s
Build on ubuntu-22.04 \| tensor: oneDNN \| autograd: oneDNN \| distributed: Stub	12m 56s
Build on ubuntu-22.04 \| tensor: Stub \| autograd: oneDNN \| distributed: Stub	9m 5s
Build on windows-2022 \| tensor: ArrayFire \| autograd: oneDNN \| distributed: Stub	19m 53s
Build on windows-2022 \| tensor: oneDNN \| autograd: oneDNN \| distributed: Stub	14m 22s
Build on windows-2022 \| tensor: Stub \| autograd: oneDNN \| distributed: Stub	10m 57s
Build on macOS-12 \| tensor: ArrayFire \| autograd: oneDNN \| distributed: Stub	12m 50s
Build on macOS-12 \| tensor: oneDNN \| autograd: oneDNN \| distributed: Stub	13m 26s
Build on macOS-12 \| tensor: Stub \| autograd: oneDNN \| distributed: Stub	11m 34s
Build on ubuntu-22.04 \| tensor: oneDNN \| autograd: oneDNN \| distributed: Gloo	8m 30s
	2h 3m 55s

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