Rename `mg_` -> `miot_` under fw

`MG_ENABLE_...` macros are not yet renamed because it involves some
logic change: e.g.  instead of defining `MG_ENABLE_MQTT`, one should
define `MIOT_ENABLE_MQTT`, which should imply `MG_ENABLE_MQTT` as well.

Macro refactoring is going to be done in another PR.

PUBLISHED_FROM=f8b66d5772846126b94223a729a6bd87897f8de6

examples/CC3200/ccs/MG_hello/main.c

@@ -10,7 +10,7 @@
 // #define WIFI_STA_SSID "YourWiFi"
 // #define WIFI_STA_PASS "YourPass"
 
-#define MG_TASK_PRIORITY 3
+#define MIOT_TASK_PRIORITY 3
 #define MG_TASK_STACK_SIZE 8192
 
 #include <stdbool.h>
@@ -214,7 +214,7 @@ int main(void) {
     LOG(LL_ERROR, ("Failed to create SL task"));
   }
 
-  if (!mg_start_task(MG_TASK_PRIORITY, MG_TASK_STACK_SIZE, mg_init)) {
+  if (!mg_start_task(MIOT_TASK_PRIORITY, MG_TASK_STACK_SIZE, mg_init)) {
     LOG(LL_ERROR, ("Failed to create MG task"));
   }
 

examples/CC3200/main.c

@@ -44,7 +44,7 @@
 #define CONSOLE_BAUD_RATE 115200
 #define CONSOLE_UART UARTA0_BASE
 #define CONSOLE_UART_PERIPH PRCM_UARTA0
-#define MG_TASK_PRIORITY 3
+#define MIOT_TASK_PRIORITY 3
 #define MG_TASK_STACK_SIZE 8192
 
 #define BM222_ADDR 0x18
@@ -264,7 +264,7 @@ int main(void) {
     LOG(LL_ERROR, ("Failed to create SL task"));
   }
 
-  if (!mg_start_task(MG_TASK_PRIORITY, MG_TASK_STACK_SIZE, mg_init)) {
+  if (!mg_start_task(MIOT_TASK_PRIORITY, MG_TASK_STACK_SIZE, mg_init)) {
     LOG(LL_ERROR, ("Failed to create MG task"));
   }
 

examples/ESP8266_RTOS/user/user_main.c

@@ -13,7 +13,7 @@
 #define MG_LISTEN_ADDR "80"
 
 #define MG_TASK_STACK_SIZE 4096
-#define MG_TASK_PRIORITY 1
+#define MIOT_TASK_PRIORITY 1
 
 void uart_div_modify(int uart_no, unsigned int freq);
 
@@ -105,5 +105,5 @@ void user_init(void) {
   uart_div_modify(0, UART_CLK_FREQ / 115200);
 
   xTaskCreate(mg_task, (const signed char *) "mongoose", MG_TASK_STACK_SIZE,
-              NULL, MG_TASK_PRIORITY, &s_mg_task_handle);
+              NULL, MIOT_TASK_PRIORITY, &s_mg_task_handle);
 }

examples/MSP432/ccs/MSP432_MG_hello/main.c

@@ -10,7 +10,7 @@
 // #define WIFI_STA_SSID "YourWiFi"
 // #define WIFI_STA_PASS "YourPass"
 
-#define MG_TASK_PRIORITY 3
+#define MIOT_TASK_PRIORITY 3
 #define MG_TASK_STACK_SIZE 8192
 
 #include <stdbool.h>
@@ -163,7 +163,7 @@ int main(void) {
   cs_log_set_level(LL_INFO);
   cs_log_set_file(stdout);
 
-  if (!mg_start_task(MG_TASK_PRIORITY, MG_TASK_STACK_SIZE, mg_init)) {
+  if (!mg_start_task(MIOT_TASK_PRIORITY, MG_TASK_STACK_SIZE, mg_init)) {
     LOG(LL_ERROR, ("Error starting Mongoose task"));
     return 1;
   }