[FL-2269] Core2 OTA (#1144)

* C2OTA: wip
* Update Cube to 1.13.3
* Fixed prio
* Functional Core2 updater
* Removed hardware CRC usage; code cleanup & linter fixes
* Moved hardcoded stack params to copro.mk
* Fixing CI bundling of core2 fw
* Removed last traces of hardcoded radio stack
* OB processing draft
* Python scripts cleanup
* Support for comments in ob data
* Sacrificed SD card icon in favor of faster update. Waiting for Storage fix
* Additional handling for OB mismatched values
* Description for new furi_hal apis; spelling fixes
* Rework of OB write, WIP
* Properly restarting OB verification loop
* Split update_task_workers.c
* Checking OBs after enabling post-update mode
* Moved OB verification before flashing
* Removed ob.data for custom stacks
* Fixed progress calculation for OB
* Removed unnecessary OB mask cast

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>

firmware/targets/furi_hal_include/furi_hal_rtc.h

@@ -28,6 +28,7 @@ typedef enum {
     FuriHalRtcFlagDebug = (1 << 0),
     FuriHalRtcFlagFactoryReset = (1 << 1),
     FuriHalRtcFlagLock = (1 << 2),
+    FuriHalRtcFlagC2Update = (1 << 3),
 } FuriHalRtcFlag;
 
 typedef enum {