staging: r8188eu: refactor dump_chip_info()

staging: r8188eu: refactor dump_chip_info()

Refactor the function dump_chip_info() to make the code cleaner and
reduce the driver object file size. Instead of using sprintf() to
print all the information to a buffer use a char pointer for the cut
version string and print the other strings directly by netdev_dbg().
For the unknown cut string we can use a smaller buffer and print to
that buffer with snprintf() to be safe.

These changes avoid the possible buffer overflow that the original
code had and reduces the driver object file size by 1029 bytes.

Suggested-by: Joe Perches <joe@perches.com>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220730150637.3550-3-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>