target/arm: Fix VCMLA Dd, Dn, Dm[idx]

target/arm: Fix VCMLA Dd, Dn, Dm[idx]

The inner loop, bounded by eltspersegment, must not be
larger than the outer loop, bounded by elements.

Cc: qemu-stable@nongnu.org
Fixes: 18fc2405781 ("target/arm: Implement SVE fp complex multiply add (indexed)")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2376
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240625183536.1672454-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit 76bccf3cb9d9383da0128bbc6d1300cddbe3ae8f)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>