logging: Make statements evaluate boolean expressions

MISRA-C requires that the if statement has essentially Boolean type.

MISRA-C rule 14.4

Signed-off-by: Flavio Ceolin <[email protected]>

Author: Flavio Ceolin

include/logging/log_core.h

@@ -169,7 +169,7 @@ extern "C" {
 			_LOG_INTERNAL_X(_LOG_NARGS_POSTFIX(__VA_ARGS__), \
 						_src_level, __VA_ARGS__);\
 		}							 \
-	} while (0)
+	} while (false)
 
 #define _LOG_INTERNAL_0(_src_level, _str) \
 	log_0(_str, _src_level)