Create a specific group "psram" to only run meaningful
tests on the sdkconfig.ci.psram and sdkconfig.ci.psram_all_ext
configuration.
Add test testing that external memory is prioritized when using
MALLOC_CAP_DEFAULT.
The new TLSF architecture has changed. tlsf.h public API
header is now moved into an include folder. tlsf_common.h
is removed from the repo.
This commit updates the heap component and respective
esp_rom patches to take into account this new
architecture.