PSP

Clean up the grant/revoke functions #78

Job	Run time
PSP (ubuntu-22.04, debugoptimized, meson) / Build PSP	3m 57s
PSP (ubuntu-22.04, debug, make) / Build PSP	4m 7s
PSP (ubuntu-22.04, debug, meson) / Build PSP	2m 35s
PSP (ubuntu-22.04, debugoptimized, make) / Build PSP	4m 12s
PSP (ubuntu-22.04, debug, meson) / Test PSP	6m 5s
PSP (ubuntu-22.04, debug, meson) / Test PSP with TDE	0s
PSP (ubuntu-22.04, debugoptimized, meson) / Test PSP	4m 45s
PSP (ubuntu-22.04, debugoptimized, meson) / Test PSP with TDE	0s
PSP (ubuntu-22.04, debug, make) / Test PSP	9m 57s
PSP (ubuntu-22.04, debug, make) / Test PSP with TDE	14m 2s
PSP (ubuntu-22.04, debugoptimized, make) / Test PSP with TDE	13m 59s
PSP (ubuntu-22.04, debugoptimized, make) / Test PSP	9m 48s
	1h 13m 27s

Provide feedback