classes: Update classes to match new bitbake class scope functionality

Move classes to classes-global or classes-recipe as appropriate to take
advantage of new bitbake functionality to check class scope/usage.

(From OE-Core rev: f5c128008365e141082c129417eb72d2751e8045)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes-recipe/linux-kernel-base.bbclass

@@ -0,0 +1,47 @@
+#
+# Copyright OpenEmbedded Contributors
+#
+# SPDX-License-Identifier: MIT
+#
+
+# parse kernel ABI version out of <linux/version.h>
+def get_kernelversion_headers(p):
+    import re
+
+    fn = p + '/include/linux/utsrelease.h'
+    if not os.path.isfile(fn):
+        # after 2.6.33-rc1
+        fn = p + '/include/generated/utsrelease.h'
+    if not os.path.isfile(fn):
+        fn = p + '/include/linux/version.h'
+
+    try:
+        f = open(fn, 'r')
+    except IOError:
+        return None
+
+    l = f.readlines()
+    f.close()
+    r = re.compile("#define UTS_RELEASE \"(.*)\"")
+    for s in l:
+        m = r.match(s)
+        if m:
+            return m.group(1)
+    return None
+
+
+def get_kernelversion_file(p):
+    fn = p + '/kernel-abiversion'
+
+    try:
+        with open(fn, 'r') as f:
+            return f.readlines()[0].strip()
+    except IOError:
+        return None
+
+def linux_module_packages(s, d):
+    suffix = ""
+    return " ".join(map(lambda s: "kernel-module-%s%s" % (s.lower().replace('_', '-').replace('@', '+'), suffix), s.split()))
+
+# that's all
+