esp32: Workaround IDF issue placing ISR ringbuf functions in IRAM.

This workaround makes sure that all ringbuf functions that may be called
from an ISR are placed in IRAM.  See
https://github.com/espressif/esp-idf/issues/13378

Note that this means that all esp32-og builds get non-ISR ringbuf functions
placed in flash now, whereas previously it was just the spiram variant.
This might be a good thing (e.g. free up some IRAM for native/viper).

Fixes issue #14005.

This work was funded through GitHub Sponsors.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

ports/esp32/esp32_common.cmake

@@ -151,6 +151,8 @@ idf_component_register(
         ${MICROPY_PORT_DIR}
         ${MICROPY_BOARD_DIR}
         ${CMAKE_BINARY_DIR}
+    LDFRAGMENTS
+        linker.lf
     REQUIRES
         ${IDF_COMPONENTS}
 )