various recipes: Make licenses a bit more SPDXish

Signed-off-by: Andreas Müller <schnitzeltony@gmail.com>

recipes-misc/recipes-hardhelper/pulseview/pulseview_0.4.1.bb

@@ -1,7 +1,7 @@
 DESCRIPTION = "PulseView is a Qt based logic analyzer, oscilloscope and MSO GUI for sigrok."
 HOMEPAGE = "http://sigrok.org/wiki/Main_Page"
 
-LICENSE = "GPLv3"
+LICENSE = "GPL-3.0"
 LIC_FILES_CHKSUM = "file://COPYING;md5=d32239bcb673463ab874e80d47fae504"
 
 DEPENDS = "libsigrok qtbase qtsvg boost"

recipes-misc/recipes-markdown/md-juggler.bb

@@ -1,5 +1,5 @@
 SUMMARY = "Qt markdown report generator "
-LICENSE = "GPLv3"
+LICENSE = "GPL-3.0"
 LIC_FILES_CHKSUM = " \
     file://LICENSE;md5=5b4473596678d62d9d83096273422c8c \
 "

recipes-misc/recipes-qml/fontawesome-qml.bb

@@ -1,5 +1,5 @@
 SUMMARY = "A library to ease up Font-Awesome handling in QML"
-LICENSE = "GPLv3 & OFL-1.1"
+LICENSE = "GPL-3.0 & OFL-1.1"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=fecd21dee2128ddcc4579bc72ad08b80"
 
 DEPENDS = " \

recipes-misc/recipes-qml/ksyntax-highlighting-wrapper.bb

@@ -1,5 +1,5 @@
 SUMMARY = "Meta-Object (QML) wrapper for KSyntaxHighlighting"
-LICENSE = "LGPLv3"
+LICENSE = "LGPL-3.0"
 LIC_FILES_CHKSUM = "file://COPYING.LGPL-3;md5=e6a600fd5e1d9cbde2d983680233ad02"
 
 DEPENDS = " \

recipes-misc/recipes-qml/markdown-qt_git.bb

@@ -1,5 +1,5 @@
 SUMMARY = "A Qt/Qml wrapper library for markdown libraries cmark and sundown"
-LICENSE = "GPLv3 & BSD-2-Clause & MIT & SUNDOWN"
+LICENSE = "GPL-3.0 & BSD-2-Clause & MIT & SUNDOWN"
 LIC_FILES_CHKSUM = " \
     file://LICENSE;md5=5b4473596678d62d9d83096273422c8c \
     file://LICENSE.cmarkdown-gfm;md5=81f9cae6293cc0345a9144b78152ab62 \

recipes-misc/recipes-qml/qmlarkdown.bb

@@ -1,5 +1,5 @@
 SUMMARY = "Simple WYSIWYG CommonMark(down) editor"
-LICENSE = "GPLv3"
+LICENSE = "GPL-3.0"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=5b4473596678d62d9d83096273422c8c"
 
 DEPENDS = " \