Staging: rtl8192e: Avoid multiple assignments

Staging: rtl8192e: Avoid multiple assignments

This addresses an issue raised by checkpatch.pl:

     $ ./scripts/checkpatch.pl --terse -f drivers/staging/rtl8192e/rtllib_wx.c
     CHECK: multiple assignments should be avoided

Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Signed-off-by: Felix Schlepper <f3sch.git@outlook.com>
Link: https://lore.kernel.org/r/899a1010643a05668465069951518e5dcab9c77e.1656667089.git.f3sch.git@outlook.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>