eisa/pci_eisa.c: fix BUG introduced by 0c65be67ee7

eisa/pci_eisa.c: fix BUG introduced by 0c65be67ee7

While `pci_eisa_driver' still refer `pci_eisa_init', the .probe() function
should not be called after init memory release, as pointed out by commit
f296086b. The structure is still referenced in the drivers subsystem, and can
be accesseed through sysfs, so the modpost warning is a false positive. Mark
it as such.

In the same time, the warning referenced in 0c65be67ee7 did only mention
`pci_eisa_driver', not `pci_eisa_pci_tbl', so remove its marking.

Broken-by: Arnaud Lacombe <lacombar@gmail.com> (in 0c65be67ee7)
Reported-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>