webkitgtk, gcr, libsecret: force ARM mode

* gcr, libsecret are new since switch to gcc 5.2
* webkitgtk is old but it was removed while migrating from
  webkit-gtk to webkitgtl (like REQUIRED_DISTRO_FEATURES were) :/

(From OE-Core rev: 555c2e0062bffdce43552c0de5ca74d688d7a0cf)

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-gnome/gcr/gcr_3.16.0.bb

@@ -16,3 +16,6 @@ FILES_${PN} += " \
     ${datadir}/dbus-1 \
     ${datadir}/gcr-3 \
 "
+
+# http://errors.yoctoproject.org/Errors/Details/20229/
+ARM_INSTRUCTION_SET = "arm"

meta/recipes-gnome/libsecret/libsecret_0.18.2.bb

@@ -10,3 +10,6 @@ EXTRA_OECONF += "--disable-manpages"
 
 SRC_URI[archive.md5sum] = "23cdf8267d11a26f88f0dbec1e2022ad"
 SRC_URI[archive.sha256sum] = "12fd288b012e1b2b1b54d586cd4c6507885715534644b4534b7ef7d7079ba443"
+
+# http://errors.yoctoproject.org/Errors/Details/20228/
+ARM_INSTRUCTION_SET = "arm"

meta/recipes-sato/webkit/webkitgtk_2.8.5.bb

@@ -70,3 +70,5 @@ FILES_${PN} += "${libdir}/webkit2gtk-4.0/injected-bundle/libwebkit2gtkinjectedbu
 FILES_${PN}-dbg += "${libdir}/webkit2gtk-4.0/injected-bundle/.debug/libwebkit2gtkinjectedbundle.so"
 FILES_${PN}-dbg += "${libdir}/webkitgtk/webkit2gtk-4.0/.debug/*"
 
+# http://errors.yoctoproject.org/Errors/Details/20370/
+ARM_INSTRUCTION_SET = "arm"