dtc: Remove -misc package and dependency to bash and diffutils

diffutils and bash are only available as gplv3

recipes-kernel/dtc/dtc_%.bbappend

+# the dtc-misc package rdepends on diffutils and bash which we don't have
+# But the available PACKAGECONFIG 'tools' disables also the dtc itself
+# which we need. So we remove the misc package here to get rid of the deps
+
+PACKAGES:remove:nogplv3 = "${PN}-misc"
+do_install:append:nogplv3(){
+    # Remove the files to not trigger 'not-shipped' QA message
+    find ${D} -name dtdiff -exec rm {} \;
+    find ${D} -name convert-dtsv0 -exec rm {} \;
+}