FL-501 CSS for both clock domains (#264)

* CSS for both clock domains. Stale LSE detection and RTC domain reset on start.
* migrate to f4

Co-authored-by: aanper <mail@s3f.ru>

firmware/targets/f3/api-hal/api-hal-power.c

@@ -1,7 +1,14 @@
 #include <api-hal-power.h>
+#include <main.h>
 #include <bq27220.h>
 #include <bq25896.h>
 
+void HAL_RCC_CSSCallback(void) {
+    LL_RCC_ForceBackupDomainReset();
+    LL_RCC_ReleaseBackupDomainReset();
+    NVIC_SystemReset();
+}
+
 void api_hal_power_init() {
     bq27220_init();
     bq25896_init();