scripts: llvm: Enable static analyzer

Enable static analyzer and provide clang-extdef-mapping for Cross Translation Unit (CTU) analysis. Signed-off-by: Tim Pambor <tim.pambor@codewrights.de>

Author: tpambor

scripts/llvm/CMakeLists.txt

@@ -156,6 +156,7 @@ endif()
 
 set(BUG_REPORT_URL "https://github.com/zephyrproject-rtos/sdk-ng/issues" CACHE STRING "")
 set(LLVM_DISTRIBUTION_COMPONENTS
+ clang-extdef-mapping
  clang-resource-headers
  clang
  dsymutil
@@ -194,6 +195,7 @@ set(LLVM_DEFAULT_TARGET_TRIPLE aarch64-linux-gnu CACHE STRING "")
 set(LLVM_APPEND_VC_REV OFF CACHE BOOL "")
 set(LLVM_ENABLE_TERMINFO OFF CACHE BOOL "")
 set(CLANG_DEFAULT_LINKER lld CACHE STRING "")
+set(CLANG_ENABLE_STATIC_ANALYZER ON CACHE BOOL "")
 
 # Default to a release build
 # (CMAKE_BUILD_TYPE is a special CMake variable so if you want to set