separate intval into separate variable in OSSL_PARAMS

separate intval into separate variable in OSSL_PARAMS

construction of int params holds a pointer to an int rather than an int
value, so we need to use separate variables when constructing separate
int params.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/26851)