ide: fix sparse warning about shadowing 'flags' symbol

drivers/ide/ide.c:801:18: warning: symbol 'flags' shadows an earlier one
drivers/ide/ide.c:732:16: originally declared here

Also fix some whitespace damage while at it.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>