staging: rtl8192e: add spaces around binary operators

Added spaces around binary operators like '+', '*', '|', '-', '&',
to improve readability and to meet linux kernel coding style.

Signed-off-by: Mitali Borkar <mitaliborkar810@gmail.com>
Link: https://lore.kernel.org/r/28cbc4825fdfacf5d5ea8bb688a8bd6a1c65f059.1618380932.git.mitaliborkar810@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>