staging: qlge: qlge_main.c: rewrite do-while loops into more compact for loops

simplify do-while loops into for loops

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Srivathsan Sivakumar <sri.skumar05@gmail.com>
Link: https://lore.kernel.org/r/YqJcLwUQorZQOrkd@Sassy


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