Port MinGW-w64 /W0 fix to development (PR realsenseai#15091) (realsenseai#15207)

Author: Nir-Az

CMake/security_flags_helper_functions.cmake

@@ -23,13 +23,13 @@ macro(disable_third_party_warnings target)
         get_target_property(target_type ${target} TYPE)
 
         if (target_type STREQUAL "INTERFACE_LIBRARY")
-            if (WIN32)
+            if (MSVC)
                 target_compile_options(${target} INTERFACE /W0)
             else()
                 target_compile_options(${target} INTERFACE -w)
             endif()
         else()
-            if (WIN32)
+            if (MSVC)
                 target_compile_options(${target} PRIVATE /W0)
             else()
                 target_compile_options(${target} PRIVATE -w)