mbtools: use https to clone and add PKG_MIRROR_HASH

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

utils/mbtools/Makefile

@@ -13,9 +13,10 @@ PKG_VERSION:=2014-10-29
 PKG_RELEASE=$(PKG_SOURCE_VERSION)
 
 PKG_SOURCE_PROTO:=git
-PKG_SOURCE_URL:=git://github.com/webstack/mbtools
+PKG_SOURCE_URL:=https://github.com/webstack/mbtools.git
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
 PKG_SOURCE_VERSION:=149e9c69cec180f18cf8781cf5285b97352bf719
+PKG_MIRROR_HASH:=1e6e2f0e40b1c596bb55279bcedfac5a8deb86ef56978dce01a78877151c9352
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 
 PKG_FIXUP:=autoreconf