Fix broken links in crypto manpage

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from #20741)

(cherry picked from commit d79b610)

doc/man7/crypto.pod

@@ -270,8 +270,8 @@ The following methods are used internally when performing operations:
 
 =back
 
-See L<OSSL_PROVIDER-default(7)>, <OSSL_PROVIDER-fips(7)> and
-<OSSL_PROVIDER-legacy(7)>for a list of algorithm names that
+See L<OSSL_PROVIDER-default(7)>, L<OSSL_PROVIDER-FIPS(7)> and
+L<OSSL_PROVIDER-legacy(7)> for a list of algorithm names that
 can be fetched.
 
 =head1 FETCHING EXAMPLES