package/libopenssl: don't build the afalg engine

The openssl configure script disables the afalg engine when it detects
cross-compilation, but the detection missfires because it is based on
the CROSS_COMPILE environment variable, which we do not set (as we pass
fully qualified CC et al.).

So, the afalg engine is built, but it is built for the host, not the
target, so it does not make sense to build and install it. Besides, it
leaks build host info.

Signed-off-by: Nuno Gonçalves <nunog@fr24.com>
[yann.morin.1998@free.fr: extend commit log]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/libopenssl/libopenssl.mk

@@ -83,6 +83,7 @@ define LIBOPENSSL_CONFIGURE_CMDS
 			no-tests \
 			no-fuzz-libfuzzer \
 			no-fuzz-afl \
+			no-afalgeng \
 			$(if $(BR2_PACKAGE_LIBOPENSSL_ENABLE_CHACHA),,no-chacha) \
 			$(if $(BR2_PACKAGE_LIBOPENSSL_ENABLE_RC5),,no-rc5) \
 			$(if $(BR2_PACKAGE_LIBOPENSSL_ENABLE_RC2),,no-rc2) \