jsoncpp: bump to version 1.8.4

Add license hash

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/jsoncpp/jsoncpp.hash

@@ -1,2 +1,3 @@
 # Locally computed
-sha256  3671ba6051e0f30849942cc66d1798fdf0362d089343a83f704c09ee7156604f  jsoncpp-1.8.3.tar.gz
+sha256  c49deac9e0933bcb7044f08516861a2d560988540b23de2ac1ad443b219afdb6  jsoncpp-1.8.4.tar.gz
+sha256  95039d77a20e75b428207740d9a8f97b2dce3c89da4b21f1ad862b5997160e0a  LICENSE

package/jsoncpp/jsoncpp.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-JSONCPP_VERSION = 1.8.3
+JSONCPP_VERSION = 1.8.4
 JSONCPP_SITE = $(call github,open-source-parsers,jsoncpp,$(JSONCPP_VERSION))
 JSONCPP_LICENSE = Public Domain or MIT
 JSONCPP_LICENSE_FILES = LICENSE