Emacs: Add regex to colorize C printf specifiers

Quelle: http://www.emacswiki.org/emacs/AddKeywords

Signed-off-by: Ratheesh S <ratheeshreddy@gmail.com>
Tested-by: Ratheesh S <ratheeshreddy@gmail.com>
Emacs: cc-mode cleanup

Signed-off-by: Ratheesh S <ratheeshreddy@gmail.com>
Tested-by: Ratheesh S <ratheeshreddy@gmail.com>
Emacs: Enable dts-mode for  *dts(i) files

Signed-off-by: Ratheesh S <ratheeshreddy@gmail.com>
Tested-by: Ratheesh S <ratheeshreddy@gmail.com>
Emacs: Add defuns for dos2unix and unix2dos

Signed-off-by: Ratheesh S <ratheeshreddy@gmail.com>