crypto: spacc - Fix counter width checks

This patch fixes counter width checks according to the version extension3
register. The counter widths can be 8, 16, 32 and 64 bits as per the
extension3 register.

Signed-off-by: Bhoomika K <bhoomikak@vayavyalabs.com>
Signed-off-by: Pavitrakumar M <pavitrakumarm@vayavyalabs.com>
Acked-by: Ruud Derwig <Ruud.Derwig@synopsys.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>