package/wireshark: add zlib optional dependency

zlib is an optional dependency which is enabled by default since at
least version 1.8.0 and
https://github.com/wireshark/wireshark/commit/7133f6944dc26740f5ebf56c2ca33be86a6e0f09

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit e6365126e731a1d0bf40eea91cb51b98b6918ecf)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/wireshark/wireshark.mk

@@ -157,6 +157,13 @@ else
 WIRESHARK_CONF_OPTS += -DBUILD_sdjournal=OFF
 endif
 
+ifeq ($(BR2_PACKAGE_ZLIB),y)
+WIRESHARK_CONF_OPTS += -DENABLE_ZLIB=ON
+WIRESHARK_DEPENDENCIES += zlib
+else
+WIRESHARK_CONF_OPTS += -DENABLE_ZLIB=OFF
+endif
+
 ifeq ($(BR2_PACKAGE_ZSTD),y)
 WIRESHARK_CONF_OPTS += -DENABLE_ZSTD=ON
 WIRESHARK_DEPENDENCIES += zstd