Add missing SUMMARY values

These recipes all had a long DESCRIPTION but no SUMMARY; since the
SUMMARY is often displayed alone by package managers and the default
value ("${PN} version ${PV}") isn't particularly useful, we should
always try to set SUMMARY.

(From OE-Core rev: db02edd2e9d7645592933cbb25ea0ca4d6561392)

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

meta/recipes-devtools/kconfig-frontends/kconfig-frontends_3.12.0.0.bb

@@ -1,6 +1,7 @@
 # Copyright (C) 2012 Khem Raj <raj.khem@gmail.com>
 # Released under the MIT license (see COPYING.MIT for the terms)
 
+SUMMARY = "Linux kernel style configuration framework for other projects"
 DESCRIPTION = "The kconfig-frontends project aims at centralising \
 the effort of keeping an up-to-date, out-of-tree, packaging of the \
 kconfig infrastructure, ready for use by third-party projects. \

meta/recipes-devtools/mklibs/mklibs-native_0.1.38.bb

@@ -1,3 +1,4 @@
+SUMMARY = "Shared library optimisation tool"
 DESCRIPTION = "mklibs produces cut-down shared libraries that contain only the routines required by a particular set of executables."
 HOMEPAGE = "https://code.launchpad.net/mklibs"
 SECTION = "devel"

meta/recipes-devtools/perl/liburi-perl_1.60.bb

@@ -1,3 +1,4 @@
+SUMMARY = "Perl module to manipulate and access URI strings"
 DESCRIPTION = "This package contains the URI.pm module with friends. \
 The module implements the URI class. URI objects can be used to access \
 and manipulate the various components that make up these strings."

meta/recipes-devtools/python/python-pyrex_0.9.9.bb

@@ -1,3 +1,4 @@
+SUMMARY = "Language for writing Python extension modules"
 DESCRIPTION = "Pyrex is a language specially designed for writing Python extension modules. \
 It's designed to bridge the gap between the nice, high-level, easy-to-use world of Python \
 and the messy, low-level world of C."

meta/recipes-devtools/vala/vala.inc

@@ -1,3 +1,4 @@
+SUMMARY = "C#-like programming language for easing GObject programming"
 DESCRIPTION = "Vala is a C#-like language dedicated to ease GObject programming. \
 Vala compiles to plain C and has no runtime environment nor penalities whatsoever."
 SECTION = "devel"