Refactor writePin to work with statements (#16738)

platforms/chibios/gpio.h

@@ -31,7 +31,14 @@ typedef ioline_t pin_t;
 
 #define writePinHigh(pin) palSetLine(pin)
 #define writePinLow(pin) palClearLine(pin)
-#define writePin(pin, level) ((level) ? (writePinHigh(pin)) : (writePinLow(pin)))
+#define writePin(pin, level)   \
+    do {                       \
+        if (level) {           \
+            writePinHigh(pin); \
+        } else {               \
+            writePinLow(pin);  \
+        }                      \
+    } while (0)
 
 #define readPin(pin) palReadLine(pin)