* master: (117 commits)
build system: Add -fno-rtti when compiling C++ code
FreeRTOS KConfig: Limit tick rate to 1000Hz
bootloader: Fix accidental tabs introduced in !78
build system: Print a WARNING if any submodule is out of date
Fix stack overflow message format
'make flash' targets: Print serial port when flashing
lwip/esp32: support iperf
Add data memory for RMT peripheral
syscall write: Should return number of bytes written
Also push relevant tags over
esp32: add libsmartconfig.a to link libs
esp32: not link wps
esp32/lib: update wifi lib to a1e5f8b9
esp32: remove esp_wps.h
add smartconfig header files(merge this after updating libsmartconfig.a version v2.6.2)
esp32/lib: update wifi lib to 3853d7ae
Add Comments
Modify spinlock error in periph_ctrl.c
Define xcoreid offset, add warning in tcb struct wrt the need to also change that define when struct changes
components/tcpip_adapter: add some comments
...
# Conflicts:
# components/freertos/queue.c
# components/freertos/tasks.c