package/fluent-bit: enable engines support in libopenssl

Fixes:
http://autobuild.buildroot.net/results/c08/c08c00f52b8f42fd408a1e84e41606d75558c3ce/

The embedded librdkafka copy unconditionally enables calls the (deprecated)
ENGINE_* logic in openssl:

https://github.com/confluentinc/librdkafka/blob/v2.4.0/src/rdkafka_conf.h#L37

Which are now no longer available in !BR2_PACKAGE_LIBOPENSSL_ENGINES builds
since commit 623d3bbe43 (package/libopenssl: no-engine), so enable it to fix
the build issue.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/fluent-bit/Config.in

@@ -6,6 +6,7 @@ config BR2_PACKAGE_FLUENT_BIT
 	select BR2_PACKAGE_MUSL_FTS if !BR2_TOOLCHAIN_USES_GLIBC
 	select BR2_PACKAGE_OPENSSL
 	select BR2_PACKAGE_OPENSSL_FORCE_LIBOPENSSL
+	select BR2_PACKAGE_LIBOPENSSL_ENGINES # needed by bundled librdkafka
 	select BR2_PACKAGE_LIBYAML
 	help
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