Revert "RISCV64: Disable V in NeuralNetworks/tools" am: 09a0c2cf68 am: 04ec709ae8

Original change: https://android-review.googlesource.com/c/platform/packages/modules/NeuralNetworks/+/2966487

Change-Id: I03d42b39f6ed13ba851ed0f2eb9bd49b0acaded4
Signed-off-by: Automerger Merge Worker <[email protected]>