Merge branch 'bugfix/timer_stack_size' into 'release/v2.0'

freertos: increase timer task stack size to 2048 bytes

Current timer task stack size is insufficient for logging calls which
use non-nano vprintf.

See merge request !607

components/freertos/include/freertos/FreeRTOSConfig.h

@@ -254,7 +254,7 @@
 #define configUSE_TIMERS                    1
 #define configTIMER_TASK_PRIORITY           1
 #define configTIMER_QUEUE_LENGTH            10
-#define configTIMER_TASK_STACK_DEPTH        configMINIMAL_STACK_SIZE
+#define configTIMER_TASK_STACK_DEPTH        2048
 
 #define INCLUDE_xTimerPendFunctionCall      1
 #define INCLUDE_eTaskGetState               1