pci, x86, acpi: fix early_ioremap() leak

Pawel reported:
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WARNING: at arch/x86/mm/ioremap.c:616 check_early_ioremap_leak+0x52/0x67()
Hardware name:
Debug warning: early ioremap leak of 1 areas detected.
Modules linked in:
Pid: 1, comm: swapper Not tainted 2.6.29-rc4-tip #2
...

Reported-by: Pawel Dziekonski <dzieko@gmail.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>