all: Rename the "NORETURN" macro to "MP_NORETURN".

This commit renames the NORETURN macro, indicating to the compiler
that a function does not return, into MP_NORETURN to maintain the same
naming convention of other similar macros.

To maintain compaitiblity with existing code NORETURN is aliased to
MP_NORETURN, but it is also deprecated for MicroPython v2.

This changeset was created using a similar process to
decf8e6a8b ("all: Remove the "STATIC"
macro and just use "static" instead."), with no documentation or python
scripts to change to reflect the new macro name.

Signed-off-by: Alessandro Gatti <a.gatti@frob.it>

ports/cc3200/misc/mperror.c

@@ -159,7 +159,7 @@ void mperror_heartbeat_signal (void) {
     }
 }
 
-void NORETURN __fatal_error(const char *msg) {
+void MP_NORETURN __fatal_error(const char *msg) {
 #ifdef DEBUG
     if (msg != NULL) {
         // wait for 20ms

ports/cc3200/misc/mperror.h

@@ -27,7 +27,7 @@
 #ifndef MICROPY_INCLUDED_CC3200_MISC_MPERROR_H
 #define MICROPY_INCLUDED_CC3200_MISC_MPERROR_H
 
-extern void NORETURN __fatal_error(const char *msg);
+extern void MP_NORETURN __fatal_error(const char *msg);
 
 void mperror_init0 (void);
 void mperror_bootloader_check_reset_cause (void);

ports/cc3200/mods/modmachine.c

@@ -93,7 +93,7 @@ extern OsiTaskHandle    xSimpleLinkSpawnTaskHndl;
 /******************************************************************************/
 // MicroPython bindings;
 
-NORETURN static void mp_machine_reset(void) {
+MP_NORETURN static void mp_machine_reset(void) {
     // disable wlan
     wlan_stop(SL_STOP_TIMEOUT_LONG);
     // reset the cpu and it's peripherals
@@ -161,7 +161,7 @@ static void mp_machine_lightsleep(size_t n_args, const mp_obj_t *args) {
     pyb_sleep_sleep();
 }
 
-NORETURN static void mp_machine_deepsleep(size_t n_args, const mp_obj_t *args) {
+MP_NORETURN static void mp_machine_deepsleep(size_t n_args, const mp_obj_t *args) {
     pyb_sleep_deepsleep();
     for (;;) {
     }

ports/cc3200/mods/pybsleep.c

@@ -136,7 +136,7 @@ static MP_DEFINE_CONST_OBJ_TYPE(
  ******************************************************************************/
 static pyb_sleep_obj_t *pyb_sleep_find (mp_obj_t obj);
 static void pyb_sleep_flash_powerdown (void);
-static NORETURN void pyb_sleep_suspend_enter (void);
+static MP_NORETURN void pyb_sleep_suspend_enter (void);
 void pyb_sleep_suspend_exit (void);
 static void pyb_sleep_obj_wakeup (void);
 static void PRCMInterruptHandler (void);
@@ -360,7 +360,7 @@ static void pyb_sleep_flash_powerdown (void) {
     MAP_SPICSDisable(SSPI_BASE);
 }
 
-static NORETURN void pyb_sleep_suspend_enter (void) {
+static MP_NORETURN void pyb_sleep_suspend_enter (void) {
     // enable full RAM retention
     MAP_PRCMSRAMRetentionEnable(PRCM_SRAM_COL_1 | PRCM_SRAM_COL_2 | PRCM_SRAM_COL_3 | PRCM_SRAM_COL_4, PRCM_SRAM_LPDS_RET);