Restore STM32F1 series to working order. (#10229)

The `_O2` attribute is no longer needed on the malyanlcd function, and the macros have broken timer numbers - reset this to a function to return the right device. Also fix the bit order cast in SPI.

Marlin/src/HAL/HAL_STM32F1/HAL_Stm32f1.cpp

 // --------------------------------------------------------------------------
 // Public Variables
 // --------------------------------------------------------------------------
+USBSerial SerialUSB;
 
 uint16_t HAL_adc_result;
 

Marlin/src/HAL/HAL_STM32F1/HAL_Stm32f1.h

   #error "SERIAL_PORT must be from -1 to 3"
 #endif
 #if SERIAL_PORT == -1
+extern USBSerial SerialUSB;
   #define MYSERIAL0 SerialUSB
 #elif SERIAL_PORT == 0
   #define MYSERIAL0 Serial
   #endif
   #define NUM_SERIAL 2
   #if SERIAL_PORT_2 == -1
+  extern USBSerial SerialUSB;
     #define MYSERIAL1 SerialUSB
   #elif SERIAL_PORT_2 == 0
     #define MYSERIAL1 Serial

Marlin/src/HAL/HAL_STM32F1/HAL_spi_Stm32f1.cpp

 #include "pins_arduino.h"
 #include "spi_pins.h"
 #include "../../core/macros.h"
+#include <spi.h>
 
 // --------------------------------------------------------------------------
 // Public Variables
 
 /** Begin SPI transaction, set clock, bit order, data mode */
 void spiBeginTransaction(uint32_t spiClock, uint8_t bitOrder, uint8_t dataMode) {
-  spiConfig = SPISettings(spiClock, bitOrder, dataMode);
+  spiConfig = SPISettings(spiClock, (BitOrder)bitOrder, dataMode);
 
   SPI.beginTransaction(spiConfig);
 }

Marlin/src/HAL/HAL_STM32F1/HAL_timers_Stm32f1.cpp

   return false;
 }
 
+timer_dev* get_timer_dev(int number) {
+  switch (number) {
+    #if STM32_HAVE_TIMER(1)
+    case 1: return &timer1;
+    #endif
+    #if STM32_HAVE_TIMER(2)
+    case 2: return &timer2;
+    #endif
+    #if STM32_HAVE_TIMER(3)
+    case 3: return &timer3;
+    #endif
+    #if STM32_HAVE_TIMER(4)
+    case 4: return &timer4;
+    #endif
+    #if STM32_HAVE_TIMER(5)
+    case 5: return &timer5;
+    #endif
+    #if STM32_HAVE_TIMER(6)
+    case 6: return &timer6;
+    #endif
+    #if STM32_HAVE_TIMER(7)
+    case 7: return &timer7;
+    #endif
+    #if STM32_HAVE_TIMER(8)
+    case 8: return &timer8;
+    #endif
+    #if STM32_HAVE_TIMER(9)
+    case 9: return &timer9;
+    #endif
+    #if STM32_HAVE_TIMER(10)
+    case 10: return &timer10;
+    #endif
+    #if STM32_HAVE_TIMER(11)
+    case 11: return &timer11;
+    #endif
+    #if STM32_HAVE_TIMER(12)
+    case 12: return &timer12;
+    #endif
+    #if STM32_HAVE_TIMER(13)
+    case 13: return &timer14;
+    #endif
+    #if STM32_HAVE_TIMER(14)
+    case 14: return &timer14;
+    #endif
+    }
+}
+
 #endif // __STM32F1__

Marlin/src/HAL/HAL_STM32F1/HAL_timers_Stm32f1.h

 // --------------------------------------------------------------------------
 
 #include <stdint.h>
+#include <libmaple/timer.h>
 
 // --------------------------------------------------------------------------
 // Defines
 #define TEMP_TIMER_NUM 2  // index of timer to use for temperature
 #define TEMP_TIMER_CHAN 1 // Channel of the timer to use for compare and interrupts
 
-#define CAT(a, ...) a ## __VA_ARGS__
-#define TIMER_DEV(num) CAT (&timer, num)
+timer_dev* get_timer_dev(int number);
+
+#define TIMER_DEV(num) get_timer_dev(num)
 
 #define STEP_TIMER_DEV TIMER_DEV(STEP_TIMER_NUM)
 #define TEMP_TIMER_DEV TIMER_DEV(TEMP_TIMER_NUM)
 
 #define HAL_timer_get_count(timer_num) timer_get_count(TIMER_DEV(timer_num))
 
-
 #define HAL_ENABLE_ISRs() do { if (thermalManager.in_temp_isr)DISABLE_TEMPERATURE_INTERRUPT(); else ENABLE_TEMPERATURE_INTERRUPT(); ENABLE_STEPPER_DRIVER_INTERRUPT(); } while(0)
 // TODO change this
 

Marlin/src/lcd/malyanlcd.cpp

  * The optimize attribute fixes a register Compile
  * error for amtel.
  */
-void lcd_update() _O2 {
+void lcd_update() {
   static char inbound_buffer[MAX_CURLY_COMMAND];
 
   // First report USB status.