soc: xlnx: zynq7000: move SoC code to common folder

remove duplicate xc7zxxx and xc7zxxxs soc code

Signed-off-by: Simon Maurer <[email protected]>

Author: mausys

soc/xlnx/zynq7000/CMakeLists.txt

@@ -4,7 +4,7 @@
 # SPDX-License-Identifier: Apache-2.0
 #
 
-add_subdirectory(${SOC_SERIES})
-
-# This is for access to pinctrl macros
+zephyr_sources(common/soc.c)
 zephyr_include_directories(common)
+
+set(SOC_LINKER_SCRIPT ${ZEPHYR_BASE}/include/zephyr/arch/arm/cortex_a_r/scripts/linker.ld CACHE INTERNAL "")