arm: omap: mcspi: make GPIO CS configurable

moved global gpio array to spi-omap2-mcspi.c

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
Conflicts:
	arch/arm/mach-omap2/devices.c
	drivers/spi/spi-omap2-mcspi.c
pia35x: add support for KACO EMS Rev. 0.3 expansion board

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
pia35x: fixes for 3.2 internal api changes
 
- set_irq_type -> irq_set_irq_type
- renames for EHCI OMAP defines

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
arm: omap: revert default HZ to 100

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>