hekate/Nyx: remove Sept completely

- remove any reference to sept and parsing of it
- completely refactor and simplify keygen
- use new Atmo tsec keygen for 7.0.0 and up
- simplify all info/tools that depend on hos keygen and bis keys

bootloader/config.c

@@ -38,7 +38,6 @@ void set_default_configuration()
 	h_cfg.autoboot = 0;
 	h_cfg.autoboot_list = 0;
 	h_cfg.bootwait = 3;
-	h_cfg.se_keygen_done = 0;
 	h_cfg.backlight = 100;
 	h_cfg.autohosoff = 0;
 	h_cfg.autonogc = 1;
@@ -46,8 +45,6 @@ void set_default_configuration()
 	h_cfg.bootprotect = 0;
 	h_cfg.errors = 0;
 	h_cfg.eks = NULL;
-	h_cfg.sept_run = EMC(EMC_SCRATCH0) & EMC_SEPT_RUN;
-	h_cfg.aes_slots_new = false;
 	h_cfg.rcm_patched = fuse_check_patched_rcm();
 	h_cfg.emummc_force_disable = false;
 	h_cfg.t210b01 = hw_get_chip_id() == GP_HIDREV_MAJOR_T210B01;