License Field Cleanup: Non-standard field names

I've cleaned up some odd license fields, fixed some license
names and corrected some incorrect licenses. LICENSE really needs
a pass through by the maintainers as some of the licensing is
incorrect.

Also, every license with Artistic should be gone through and noted as
which version of Artistic.

(From OE-Core rev: 4786ecdf7cd427089464dcb62579110d494e7cd7)

Signed-off-by: Beth Flanagan <elizabeth.flanagan@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/elfutils/elfutils_0.148.bb

@@ -1,7 +1,7 @@
 DESCRIPTION = "A collection of utilities and DSOs to handle compiled objects."
 HOMEPAGE = "https://fedorahosted.org/elfutils"
 SECTION = "base"
-LICENSE = "GPLv2 with exceptions"
+LICENSE = "(GPLv2 & Exception)"
 LIC_FILES_CHKSUM = "file://COPYING;md5=0636e73ff0215e8d672dc4c32c317bb3\
                     file://EXCEPTION;md5=570adcb0c1218ab57f2249c67d0ce417"
 DEPENDS = "libtool bzip2 zlib"