package/dovecot: needs engine support when built with libopenssl

Buildroot commit 623d3bbe43e9193aa8e3395367d01af59071b859 disables
engine support when BR2_PACKAGE_LIBOPENSSL_ENGINES is not set.

Fixes:
http://autobuild.buildroot.net/results/7484edfa0b8c45bafb8da051ca839bf174c8f93f/

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/dovecot/Config.in

@@ -2,6 +2,7 @@ config BR2_PACKAGE_DOVECOT
 	bool "dovecot"
 	depends on !BR2_STATIC_LIBS
 	depends on BR2_USE_MMU # fork()
+	select BR2_PACKAGE_LIBOPENSSL_ENGINES if BR2_PACKAGE_LIBOPENSSL
 	select BR2_PACKAGE_LIBXCRYPT if BR2_TOOLCHAIN_USES_GLIBC
 	select BR2_PACKAGE_OPENSSL
 	select BR2_PACKAGE_ZLIB