bash: Fix for CVE-2014-7186 and CVE-2014-7187

This is a followup patch to incomplete CVE-2014-6271 fix code execution via
specially-crafted environment

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7186
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7187

(From OE-Core daisy rev: 153d1125659df9e5c09e35a58bd51be184cb13c1)

(From OE-Core rev: bdfe1e3770aeee9a1a7c65d4834f1a99820d3140)

Signed-off-by: Sona Sarmadi <sona.sarmadi@enea.com>
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/bash/bash_4.2.bb

@@ -24,6 +24,7 @@ SRC_URI = "${GNU_MIRROR}/bash/${BPN}-${PV}.tar.gz;name=tarball \
            file://cve-2014-6271.patch;striplevel=0 \
            file://cve-2014-7169.patch \
            file://Fix-for-bash-exported-function-namespace-change.patch;striplevel=0 \
+           file://cve-2014-7186_cve-2014-7187.patch;striplevel=0 \
            file://run-ptest \
            "