Revert "RISCV64: Disable V in NeuralNetworks/tools"

This reverts commit 1725319e0a4074cd22181951811e47544910e4de.

Reason for revert: Toolchain update complete
Fixes: b/304286845

Change-Id: Ibc31ac9ec063ce3689d025f6b26e67199e9f79cc
2 files changed