hw/dma: Do not build the xlnx_dpdma device for the MicroBlaze machines

The xlnx_dpdma device is only used by the ZynqMP AArch64 machine
(not the MicroBlaze PMU). Remove it from the ZynqMP generic objects.
(Note, this entry was duplicated for the AArch64).

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190427141459.19728-4-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/dma/Makefile.objs

@@ -8,7 +8,6 @@ common-obj-$(CONFIG_XILINX_AXI) += xilinx_axidma.o
 common-obj-$(CONFIG_ZYNQ_DEVCFG) += xlnx-zynq-devcfg.o
 common-obj-$(CONFIG_ETRAXFS) += etraxfs_dma.o
 common-obj-$(CONFIG_STP2000) += sparc32_dma.o
-obj-$(CONFIG_XLNX_ZYNQMP) += xlnx_dpdma.o
 obj-$(CONFIG_XLNX_ZYNQMP_ARM) += xlnx_dpdma.o
 common-obj-$(CONFIG_XLNX_ZYNQMP_ARM) += xlnx-zdma.o