i2c: designware-baytrail: use proper Kconfig dependencies

IOSF_MBI depends on PCI, so we should not select it but depend on it.
This ensures also we compile on X86 only, other archs will break because
of an arch specific include. Also depend on ACPI since this driver uses
it.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: David E. Box <david.e.box@linux.intel.com>