Syntax tweaks

Marlin/src/module/planner.cpp

   // Calculate and limit speed in mm/sec for each axis
   float current_speed[NUM_AXIS], speed_factor = 1.0; // factor <1 decreases speed
   LOOP_XYZE(i) {
-    const float cs = FABS(current_speed[i] = delta_mm[i] * inverse_mm_s);
+    const float cs = FABS((current_speed[i] = delta_mm[i] * inverse_mm_s));
     #if ENABLED(DISTINCT_E_FACTORS)
       if (i == E_AXIS) i += extruder;
     #endif

Marlin/src/module/temperature.cpp

           case TIMER1A: case TIMER1B:             //_SET_CS(1, val);
                                                     break;
         #endif
-        #ifdef TCCR2
-          case TIMER2: case TIMER2:                 _SET_CS(2, val); break;
-        #endif
-        #ifdef TCCR2A
-          case TIMER2A: case TIMER2B:               _SET_CS(2, val); break;
+        #if defined(TCCR2) || defined(TCCR2A)
+          #ifdef TCCR2
+            case TIMER2:
+          #endif
+          #ifdef TCCR2A
+            case TIMER2A: case TIMER2B:
+          #endif
+                                                    _SET_CS(2, val); break;
         #endif
         #ifdef TCCR3A
           case TIMER3A: case TIMER3B: case TIMER3C: _SET_CS(3, val); break;