libubox: update to latest git HEAD

eb30a03 libubox, jshn: add option to write output to a file

Signed-off-by: Roman Yeryomin <[email protected]>

package/libs/libubox/Makefile

@@ -5,9 +5,9 @@ PKG_RELEASE=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/libubox.git
-PKG_SOURCE_DATE:=2019-06-16
-PKG_SOURCE_VERSION:=ecf56174da9614a0b3107d33def463eefb4d7785
-PKG_MIRROR_HASH:=e3dd137d69848b8cf2dbc58d70452586dd4178b55977896ea3a9dedaf62c768c
+PKG_SOURCE_DATE:=2019-10-21
+PKG_SOURCE_VERSION:=eb30a03048f83e733a9530b5741808d7d0932ff2
+PKG_MIRROR_HASH:=04c0edc0df8c9336ca3d68d3e3536de42805837c72ceb5fb4ecaab87a59ff2cd
 CMAKE_INSTALL:=1
 
 PKG_LICENSE:=ISC