populate-extfs.sh: fix to handle special file names correctly

`debugfs' treats spaces and "" specially. So when we are dealing with
file names, great care should be taken to make sure that `debugfs'
recognizes file names correctly.

The basic solution here is:
1. Use quotation marks to handle spaces correctly.
2. Replace "xxx" with ""xxx"" so that debugfs knows that the quotation
   marks are parts of the file name.

[YOCTO #6503]

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
opkg: putting the service files into PN

(From OE-Core rev: f0ec7f81c1951211f049c342fd6bd1cad424564a)

[YOCTO #6392]

Signed-off-by: Roy Li <rongqing.li@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>