fix: Update thread names

Remove _thread suffix and rename threads.

Author: jdbruijn

features/cellular/easy_cellular/CellularConnectionFSM.cpp

@@ -617,7 +617,7 @@ nsapi_error_t CellularConnectionFSM::start_dispatch()
 {
     MBED_ASSERT(!_queue_thread);
 
-    _queue_thread = new rtos::Thread(osPriorityNormal, 2048, NULL, "fsm_queue_thread");
+    _queue_thread = new rtos::Thread(osPriorityNormal, 2048, NULL, "cellular_fsm_queue");
     if (!_queue_thread) {
         stop();
         return NSAPI_ERROR_NO_MEMORY;

features/lwipstack/lwip/src/include/lwip/opt.h

@@ -1536,7 +1536,7 @@
  * TCPIP_THREAD_NAME: The name assigned to the main tcpip thread.
  */
 #if !defined TCPIP_THREAD_NAME || defined __DOXYGEN__
-#define TCPIP_THREAD_NAME              "tcpip_thread"
+#define TCPIP_THREAD_NAME              "lwip_tcpip"
 #endif
 
 /**

features/lwipstack/ppp_lwip.cpp

@@ -68,7 +68,7 @@ static EventQueue *prepare_event_queue()
 
     // Only need to queue 2 events. new blows on failure.
     event_queue = new EventQueue(2 * EVENTS_EVENT_SIZE, NULL);
-    event_thread = new Thread(osPriorityNormal, PPP_THREAD_STACK_SIZE, NULL, "event_thread");
+    event_thread = new Thread(osPriorityNormal, PPP_THREAD_STACK_SIZE, NULL, "ppp_lwip");
 
     if (event_thread->start(callback(event_queue, &EventQueue::dispatch_forever)) != osOK) {
         delete event_thread;

rtos/TARGET_CORTEX/mbed_rtos_rtx.c

@@ -52,7 +52,7 @@ MBED_NORETURN void mbed_rtos_start()
     _main_thread_attr.cb_size = sizeof(_main_obj);
     _main_thread_attr.cb_mem = &_main_obj;
     _main_thread_attr.priority = osPriorityNormal;
-    _main_thread_attr.name = "main_thread";
+    _main_thread_attr.name = "rtx_main";
 
     /* Allow non-secure main thread to call secure functions */
 #if defined(DOMAIN_NS) && (DOMAIN_NS == 1U)

rtos/TARGET_CORTEX/mbed_rtx_conf.h

@@ -70,8 +70,8 @@
 // LIBSPACE default value set for ARMCC
 #define OS_THREAD_LIBSPACE_NUM      4
 
-#define OS_IDLE_THREAD_NAME         "idle_thread"
-#define OS_TIMER_THREAD_NAME        "timer_thread"
+#define OS_IDLE_THREAD_NAME         "rtx_idle"
+#define OS_TIMER_THREAD_NAME        "rtx_timer"
 
 /* Enable only the evr events we use in Mbed-OS to save flash space. */
 //Following events are used by Mbed-OS, DO NOT disable them