Utils update and rm simulations/fft_filter_test

[penfold42]

Update autosave.py:

• added AMS to modes{}
• added 9kHz to steps{}
• documented missing config fields

memory.py

• added 9kHz to steps{}

rm simulations/fft_filter_test

• git windows insisted its permissions changed and I'm assuming you didnt really want an x86 binary in the repo

fix subtle bug where on exiting display_timeout, you'd get dropped into another hw_config menu based on the selected timeout :)

oled contrast is now stored in bits of hw_setup

s/enum_deemphasis/flag_deemphasis added mask_deemphasis

[dawsonjon]

👍