meta/classes: Various python whitespace fixes

It was pointed out we have a number of weird indentations in the python functions.
This patch cleans up 3, 7 and other weird indentations for the core bbclass files.

It also fixes some wierd (odd) shell function indentation which my searches picked up.

(From OE-Core rev: 8385d6d74624000d68814f4e3266d47bc8885942)

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

meta/classes/grub-efi.bbclass

@@ -54,12 +54,12 @@ python build_grub_cfg() {
     if not workdir:
         bb.error("WORKDIR not defined, unable to package")
         return
-       
+
     labels = d.getVar('LABELS', True)
     if not labels:
         bb.debug(1, "LABELS not defined, nothing to do")
         return
-   
+
     if labels == []:
         bb.debug(1, "No labels, nothing to do")
         return
@@ -109,7 +109,7 @@ python build_grub_cfg() {
         if append:
             cfgfile.write('%s' % (append))
         cfgfile.write('\n')
-   
+
         if initrd:
             cfgfile.write('initrd /initrd')
         cfgfile.write('\n}\n')