dpkg: upgrade to version 1.15.8.5

Rebase several patches to fit the latest version
Fix a compile issue related with snprintf.
dpkg: bump PR

Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Signed-off-by: Saul Wold <Saul.Wold@intel.com>

meta/recipes-devtools/dpkg/dpkg.inc

@@ -1,7 +1,7 @@
 DESCRIPTION = "Package maintenance system for Debian."
 LICENSE = "GPL"
 SECTION = "base"
-PR = "r0"
+PR = "r1"
 
 SRC_URI = "${DEBIAN_MIRROR}/main/d/dpkg/dpkg_${PV}.tar.bz2 \
            file://ignore_extra_fields.patch;patch=1"