latest

flash/nor/rp2xxx: save ACCESSCTRL over ROM API calls

Especially after the flash probe (used in gdb-attach event)
we need to completely restore the original security state to allow
'resume' or gdb 'continue' without injecting strange errors
to application code.

Save all ACCESSCTRL registers potentially changed by triggering CFGRESET.
Restore them at cleanup.

Fixes: commit ea775d49fc71 ("flash/nor/rp2040: add RP2350 support")
Change-Id: I964886d5b1d0269497c343811ee4dcd5c31953db
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>