Checkpatch generates incorrect warning for __DEPRECATED_MACRO

[mnkp]

Bug descritpion
When trying to deprecate a macro using __DEPRECATED_MACRO e.g.

#define GPIO_PUD_NORMAL        __DEPRECATED_MACRO 0

checkpatch generates the following warning

-:1067: WARNING:COMPLEX_MACRO: Macros with complex values should be enclosed in parentheses
#1067: FILE: include/gpio.h:274:
+#define GPIO_PUD_NORMAL        __DEPRECATED_MACRO 0

even if __DEPRECATED_MACRO is used correctly.

To Reproduce
Steps to reproduce the behavior:

1. modify source code by adding
   #define GPIO_PUD_NORMAL __DEPRECATED_MACRO 0
2. commit changes using git.

Expected behavior
No warning.

Environment:

• OS: Linux
• Zephyr version 1.14

[gmarull]

We currently ignore COMPLEX_MACRO, so this no longer applies.