ARM: zynq: Switch to single zynq configurations

There are a lot of zynq configurations which can be merged together and use
only one for all. The similar change has been done for ZynqMP by commit
be1b6c32d940 ("arm64: zynqmp: Use zynqmp_virt platform")

Build SPL with u-boot.img for zc706 like this.
export DEVICE_TREE=zynq-zc706 && make xilinx_zynq_virt_defconfig && make -j8
u-boot.img is generic for all boards.

Tested on Zybo, zc702, zc706, zc770-xm011-x16, cc108 and microzed.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/.azure-pipelines.yml b/.azure-pipelines.yml
index f66d58a..7d2ffe3 100644
--- a/.azure-pipelines.yml
+++ b/.azure-pipelines.yml
@@ -227,11 +227,11 @@
           TEST_PY_BD: "qemu-x86_64"
           TEST_PY_TEST_SPEC: "not sleep"
           BUILDMAN: "^qemu-x86_64$"
-        zynq_zc702:
-          TEST_PY_BD: "zynq_zc702"
+        xilinx_zynq_virt:
+          TEST_PY_BD: "xilinx_zynq_virt"
           TEST_PY_ID: "--id qemu"
           TEST_PY_TEST_SPEC: "not sleep"
-          BUILDMAN: "^zynq_zc702$"
+          BUILDMAN: "^xilinx_zynq_virt$"
         xilinx_versal_virt:
           TEST_PY_BD: "xilinx_versal_virt"
           TEST_PY_ID: "--id qemu"