crypto: inside-secure - use the base_end pointer in ring rollback

A base_end pointer is set and provided. Use it in the ring rollback
function to avoid using build-in defines.

Signed-off-by: Antoine Tenart <[e-mail]>
Signed-off-by: Herbert Xu <[e-mail]>

drivers/crypto/inside-secure/safexcel_ring.c

···
 		return;
 
 	if (ring->write == ring->base)
-		ring->write += (EIP197_DEFAULT_RING_SIZE - 1) * ring->offset;
+		ring->write = ring->base_end - ring->offset;
 	else
 		ring->write -= ring->offset;