package/libuhttpd: fix build with wolfssl

package/libuhttpd: fix build with wolfssl

Build with wolfssl is broken since bump to version 3.12.1 in commit
4d85defa7103aadc74223868fb83ed0bed144f4d:

/data/buildroot-autobuilder/instance-0/output-1/build/libuhttpd-3.12.1/src/ssl/openssl.c: In function 'ssl_context_new':
/data/buildroot-autobuilder/instance-0/output-1/build/libuhttpd-3.12.1/src/ssl/openssl.c:180:32: error: 'SSL_OP_NO_SSLv3' undeclared (first use in this function); did you mean 'WOLFSSL_OP_NO_SSLv3'?
  180 |         SSL_CTX_set_options(c, SSL_OP_NO_SSLv3 | SSL_OP_NO_TLSv1 | SSL_OP_NO_TLSv1_1);
      |                                ^~~~~~~~~~~~~~~
      |                                WOLFSSL_OP_NO_SSLv3

This build failure is raised by
https://github.com/zhaojh329/libuhttpd/commit/0fb46935f0cd5f737c6f4e6053d62268aca793a7
as since this commit, libuhttpd expects that SSL_OP_NO_xxx are defined
by wolfssl

Fixes:
 - http://autobuild.buildroot.org/results/79e3fa697537f2e33863e490b74ec881993eae73

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>