toolchain: gcc: Add the __deprecated_version macro

Add the `__deprecated_version` macro to print version
information when deprecation warnings are triggered.

Signed-off-by: James Roy <rruuaanng@outlook.com>

Author: rruuaanng

include/zephyr/toolchain/gcc.h

@@ -267,6 +267,11 @@ do {                                                                    \
  */
 #endif
 
+#ifndef __deprecated_version
+#define __deprecated(version) \
+	__attribute__((deprecated("planned removal in v" #version)))
+#endif
+
 #ifndef __attribute_const__
 #define __attribute_const__ __attribute__((__const__))
 #endif