powerpc/pseries: Move vio.c into platforms pseries

vio.c is pseries only code, so move it in there.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/platforms/Kconfig

@@ -168,11 +168,6 @@ config MPIC_BROKEN_REGREAD
 	  well, but enabling it uses about 8KB of memory to keep copies
 	  of the register contents in software.
 
-config IBMVIO
-	depends on PPC_PSERIES
-	bool
-	default y
-
 config IBMEBUS
 	depends on PPC_PSERIES
 	bool "Support for GX bus based adapters"

arch/powerpc/platforms/pseries/Kconfig

@@ -127,3 +127,8 @@ config HV_PERF_CTRS
 	  systems. 24x7 is available on Power 8 systems.
 
           If unsure, select Y.
+
+config IBMVIO
+	depends on PPC_PSERIES
+	bool
+	default y

arch/powerpc/platforms/pseries/Makefile

@@ -21,6 +21,7 @@ obj-$(CONFIG_CMM)		+= cmm.o
 obj-$(CONFIG_DTL)		+= dtl.o
 obj-$(CONFIG_IO_EVENT_IRQ)	+= io_event_irq.o
 obj-$(CONFIG_LPARCFG)		+= lparcfg.o
+obj-$(CONFIG_IBMVIO)		+= vio.o
 
 ifeq ($(CONFIG_PPC_PSERIES),y)
 obj-$(CONFIG_SUSPEND)		+= suspend.o