OECore license fixes: meta/*

This is a quick audit of only the most obviously wrong licenses
found within OECore. These fixes fall into four areas:

- LICENSE field had incorrect format so that the parser choked
- LICENSE field has a license with no version
- LICENSE field was actually incorrect
- LICENSE field has an imaginary license that didn't exist

This fixes most of the LICENSE warnings thrown, along with my prior
commit adding additional licenses to common-licenses and additional
SPDXLICENSEMAP entries.

HOWEVER..... there is much to be done on the license front.
For a list of recipes with licenses that need obvious fixing see:

https://wiki.yoctoproject.org/wiki/License_Audit

That said, I would suggest another license audit as I've found
enough inconsistencies. A good suggestion is when in doubt, look at
how openSuse or Gentoo or Debian license the package.

(From OE-Core rev: 3083dd70b3a9fa01fcc3cf00373b05502505996e)

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

meta/recipes-devtools/squashfs-tools/squashfs-tools_4.2.bb

@@ -2,12 +2,12 @@
 # and I don't think the kernel supports it any more.
 DESCRIPTION = "Tools to manipulate Squashfs filesystems."
 SECTION = "base"
-LICENSE = "GPLv2 & Public Domain"
+LICENSE = "GPL-2 & PD"
 LIC_FILES_CHKSUM = "file://../COPYING;md5=0636e73ff0215e8d672dc4c32c317bb3 \
                     file://../../7zC.txt;beginline=12;endline=16;md5=2056cd6d919ebc3807602143c7449a7c \
                    "
 DEPENDS = "attr zlib xz"
-PR = "r0"
+PR = "1"
 
 SRC_URI = "${SOURCEFORGE_MIRROR}/squashfs/squashfs${PV}.tar.gz;name=squashfs \
            http://downloads.sourceforge.net/sevenzip/lzma465.tar.bz2;name=lzma \