HAL_ChibiOS: shorted thread names

changes names so threads can be distinguished by first 4 bytes

libraries/AP_HAL_ChibiOS/Device.cpp

@@ -104,12 +104,12 @@ AP_HAL::Device::PeriodicHandle DeviceBus::register_periodic_callback(uint32_t pe
         char *name = (char *)malloc(name_len);
         switch (hal_device->bus_type()) {
         case AP_HAL::Device::BUS_TYPE_I2C:
-            snprintf(name, name_len, "I2C:%u",
+            snprintf(name, name_len, "I2C%u",
                      hal_device->bus_num());
             break;
 
         case AP_HAL::Device::BUS_TYPE_SPI:
-            snprintf(name, name_len, "SPI:%u",
+            snprintf(name, name_len, "SPI%u",
                      hal_device->bus_num());
             break;
         default:

libraries/AP_HAL_ChibiOS/Scheduler.cpp

@@ -307,7 +307,7 @@ void Scheduler::_run_timers()
 void Scheduler::_timer_thread(void *arg)
 {
     Scheduler *sched = (Scheduler *)arg;
-    chRegSetThreadName("apm_timer");
+    chRegSetThreadName("timer");
 
     while (!sched->_hal_initialized) {
         sched->delay_microseconds(1000);
@@ -346,7 +346,7 @@ bool Scheduler::in_expected_delay(void) const
 void Scheduler::_monitor_thread(void *arg)
 {
     Scheduler *sched = (Scheduler *)arg;
-    chRegSetThreadName("apm_monitor");
+    chRegSetThreadName("monitor");
 
     while (!sched->_initialized) {
         sched->delay(100);
@@ -389,7 +389,7 @@ void Scheduler::_monitor_thread(void *arg)
 void Scheduler::_rcin_thread(void *arg)
 {
     Scheduler *sched = (Scheduler *)arg;
-    chRegSetThreadName("apm_rcin");
+    chRegSetThreadName("rcin");
     while (!sched->_hal_initialized) {
         sched->delay_microseconds(20000);
     }
@@ -423,7 +423,7 @@ void Scheduler::_run_io(void)
 void Scheduler::_io_thread(void* arg)
 {
     Scheduler *sched = (Scheduler *)arg;
-    chRegSetThreadName("apm_io");
+    chRegSetThreadName("io");
     while (!sched->_hal_initialized) {
         sched->delay_microseconds(1000);
     }
@@ -449,7 +449,7 @@ void Scheduler::_io_thread(void* arg)
 void Scheduler::_storage_thread(void* arg)
 {
     Scheduler *sched = (Scheduler *)arg;
-    chRegSetThreadName("apm_storage");
+    chRegSetThreadName("storage");
     while (!sched->_hal_initialized) {
         sched->delay_microseconds(10000);
     }