lib: xlnx: Change Xilinx-AMD based machine names to be SOC agnostic

As the various cores on Xilinx-AMD cores can be on multiple SOC's, rename
the CMake machine names from 'SOC-CORE' to 'xlnx-CORE'

Signed-off-by: Ben Levinsky <ben.levinsky@amd.com>

lib/system/freertos/CMakeLists.txt

@@ -21,10 +21,10 @@ if (EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${PROJECT_MACHINE})
   add_subdirectory(${PROJECT_MACHINE})
 endif (EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${PROJECT_MACHINE})
 
-if ("${PROJECT_MACHINE}" STREQUAL "zynqmp_a53" OR
-    "${PROJECT_MACHINE}" STREQUAL "zynqmp_a72" OR
-    "${PROJECT_MACHINE}" STREQUAL "zynqmp_a78" OR
-    "${PROJECT_MACHINE}" STREQUAL "zynqmp_r5" OR
+if ("${PROJECT_MACHINE}" STREQUAL "xlnx_a53" OR
+    "${PROJECT_MACHINE}" STREQUAL "xlnx_a72" OR
+    "${PROJECT_MACHINE}" STREQUAL "xlnx_a78" OR
+    "${PROJECT_MACHINE}" STREQUAL "xlnx_r5" OR
     "${PROJECT_MACHINE}" STREQUAL "zynq7")
 add_subdirectory(xlnx)
 endif()

lib/system/generic/CMakeLists.txt

@@ -17,10 +17,10 @@ collect (PROJECT_LIB_SOURCES irq.c)
 collect (PROJECT_LIB_SOURCES shmem.c)
 collect (PROJECT_LIB_SOURCES time.c)
 
-if ("${PROJECT_MACHINE}" STREQUAL "zynqmp_a53" OR
-    "${PROJECT_MACHINE}" STREQUAL "zynqmp_a72" OR
-    "${PROJECT_MACHINE}" STREQUAL "zynqmp_a78" OR
-    "${PROJECT_MACHINE}" STREQUAL "zynqmp_r5"  OR
+if ("${PROJECT_MACHINE}" STREQUAL "xlnx_a53" OR
+    "${PROJECT_MACHINE}" STREQUAL "xlnx_a72" OR
+    "${PROJECT_MACHINE}" STREQUAL "xlnx_a78" OR
+    "${PROJECT_MACHINE}" STREQUAL "xlnx_r5"  OR
     "${PROJECT_MACHINE}" STREQUAL "microblaze_generic"  OR
     "${PROJECT_MACHINE}" STREQUAL "zynq7")
   add_subdirectory(xlnx)