hw/intc: Only build the xlnx-iomod-intc device for the MicroBlaze PMU

The Xilinx I/O Module Interrupt Controller is only used by the
MicroBlaze PMU, not by the AArch64 machine.
Move it from the generic ZynqMP object list to the PMU specific.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190427141459.19728-3-philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

hw/intc/Makefile.objs

@@ -3,7 +3,7 @@ common-obj-$(CONFIG_I8259) += i8259_common.o i8259.o
 common-obj-$(CONFIG_PL190) += pl190.o
 common-obj-$(CONFIG_PUV3) += puv3_intc.o
 common-obj-$(CONFIG_XILINX) += xilinx_intc.o
-common-obj-$(CONFIG_XLNX_ZYNQMP) += xlnx-pmu-iomod-intc.o
+common-obj-$(CONFIG_XLNX_ZYNQMP_PMU) += xlnx-pmu-iomod-intc.o
 common-obj-$(CONFIG_XLNX_ZYNQMP) += xlnx-zynqmp-ipi.o
 common-obj-$(CONFIG_ETRAXFS) += etraxfs_pic.o
 common-obj-$(CONFIG_IMX) += imx_avic.o imx_gpcv2.o