Misc general spacing cleanup

Marlin/Configuration.h

  * Enable one of the following items for a slower SPI transfer speed.
  * This may be required to resolve "volume init" errors or LCD issues.
  */
- 
+
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED

Marlin/src/HAL/HAL_AVR/MarlinSerial.cpp

     }
 
     void MarlinSerial::writeNoHandshake(const uint8_t c) {
-      while (!TEST(M_UCSRxA, M_UDREx)) ;
+      while (!TEST(M_UCSRxA, M_UDREx)) { /* nada */ }
       M_UDRx = c;
     }
 

Marlin/src/HAL/HAL_AVR/MarlinSerial.h

   #else
     typedef uint8_t ring_buffer_pos_t;
   #endif
-  
+
   #if ENABLED(SERIAL_STATS_DROPPED_RX)
     extern uint8_t rx_dropped_bytes;
   #endif
 
   #if ENABLED(SERIAL_STATS_MAX_RX_QUEUED)
     extern ring_buffer_pos_t rx_max_enqueued;
-  #endif  
-  
+  #endif
+
   class MarlinSerial { //: public Stream
 
     public:
 
       #if ENABLED(SERIAL_STATS_MAX_RX_QUEUED)
         FORCE_INLINE static ring_buffer_pos_t rxMaxEnqueued() { return rx_max_enqueued; }
-      #endif  
+      #endif
 
       static FORCE_INLINE void write(const char* str) { while (*str) write(*str++); }
       static FORCE_INLINE void write(const uint8_t* buffer, size_t size) { while (size--) write(*buffer++); }

Marlin/src/HAL/HAL_LPC1768/LPC1768_PWM.h

     ISR_table = active_table;                    // MR0 means new values could have been loaded so set everything
     if (PWM_table_swap) LPC_PWM1->MCR = LPC1768_PWM_interrupt_mask; // enable new PWM individual channel interrupts
 
-    for (uint8_t i = 0; (i < NUM_PWMS) ; i++) {
+    for (uint8_t i = 0; i < NUM_PWMS; i++) {
       if(ISR_table[i].active_flag && !((ISR_table[i].logical_pin ==  11) ||
                                        (ISR_table[i].logical_pin ==  4) ||
                                        (ISR_table[i].logical_pin ==  6)))

Marlin/src/HAL/persistent_store_api.h

 bool access_start();
 bool access_finish();
 bool write_data(int &pos, const uint8_t *value, uint16_t size, uint16_t *crc);
-void read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) ;
+void read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc);
 
 } // PersistentStore
 } // HAL

frameworks/CMSIS/LPC1768/driver/lpc17xx_systick.c

 	 * 1/SystemCoreClock * (2^24) * 1000 (ms)
 	 */
 	//check time value is available or not
-	maxtime = (1<<24)/(SystemCoreClock / 1000) ;
+	maxtime = (1<<24)/(SystemCoreClock / 1000);
 	if(time > maxtime)
 		//Error loop
 		while(1);
 	 * 1/freq * (2^24) * 1000 (ms)
 	 */
 	//check time value is available or not
-	maxtime = (1<<24)/(freq / 1000) ;
+	maxtime = (1<<24)/(freq / 1000);
 	if (time>maxtime)
 		//Error Loop
 		while(1);