cmake: compiler: arcmwdt: Add no_strict_aliasing flag

This commit adds the `no_strict_aliasing` flag, which disables
the strict aliasing rule, for the ARC MetaWare compiler.

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>

cmake/compiler/arcmwdt/compiler_flags.cmake

@@ -132,6 +132,9 @@ set_property(TARGET compiler-cpp PROPERTY dialect_cpp2a "")
 set_property(TARGET compiler-cpp PROPERTY dialect_cpp20 "")
 set_property(TARGET compiler-cpp PROPERTY dialect_cpp2b "")
 
+# Flag for disabling strict aliasing rule in C and C++
+set_compiler_property(PROPERTY no_strict_aliasing -fno-strict-aliasing)
+
 # Disable exceptions flag in C++
 set_property(TARGET compiler-cpp PROPERTY no_exceptions "-fno-exceptions")