extmod/modmachine: Clean up decls of machine types to use common ones.

The machine_i2c_type, machine_spi_type and machine_timer_type symbols are
already declared in extmod/modmachine.h and should not be declared anywhere
else.

Also move declarations of machine_pin_type and machine_rtc_type to the
common header in extmod.

Signed-off-by: Damien George <damien@micropython.org>

ports/nrf/modules/machine/i2c.c

@@ -35,6 +35,7 @@
 #if MICROPY_PY_MACHINE_I2C
 
 #include "extmod/machine_i2c.h"
+#include "extmod/modmachine.h"
 #include "i2c.h"
 #if NRFX_TWI_ENABLED
 #include "nrfx_twi.h"

ports/nrf/modules/machine/i2c.h

@@ -29,8 +29,6 @@
 
 #include "extmod/machine_i2c.h"
 
-extern const mp_obj_type_t machine_i2c_type;
-
 void i2c_init0(void);
 
 #endif // I2C_H__

ports/nrf/modules/machine/modmachine.h

@@ -28,8 +28,6 @@
 #ifndef __MICROPY_INCLUDED_NRF5_MODMACHINE_H__
 #define __MICROPY_INCLUDED_NRF5_MODMACHINE_H__
 
-#include "py/mpstate.h"
-#include "py/nlr.h"
 #include "py/obj.h"
 
 void machine_init(void);

ports/nrf/modules/machine/spi.c

@@ -36,6 +36,7 @@
 #include "py/nlr.h"
 #include "py/mphal.h"
 #include "extmod/machine_spi.h"
+#include "extmod/modmachine.h"
 #include "pin.h"
 #include "genhdr/pins.h"
 #include "spi.h"

ports/nrf/modules/machine/spi.h

@@ -27,7 +27,6 @@
 #include "py/obj.h"
 
 typedef struct _machine_hard_spi_obj_t machine_hard_spi_obj_t;
-extern const mp_obj_type_t machine_spi_type;
 
 void spi_init0(void);
 void spi_transfer(const machine_hard_spi_obj_t * self,

ports/nrf/modules/machine/timer.c

@@ -24,8 +24,8 @@
  * THE SOFTWARE.
  */
 
-#include "py/nlr.h"
 #include "py/runtime.h"
+#include "extmod/modmachine.h"
 #include "timer.h"
 #include "nrfx_timer.h"
 

ports/nrf/modules/machine/timer.h

@@ -27,8 +27,6 @@
 #ifndef TIMER_H__
 #define TIMER_H__
 
-extern const mp_obj_type_t machine_timer_type;
-
 void timer_init0(void);
 
 #endif // TIMER_H__