Release Candidate 0.48.0 Bug Fixes (#991)

* Power: wait a little bit till message displayed on screen when executing power off. FuriCore: do not use bkpt in release builds(causing HardFault when SPI is active).
* Cleanup BSS section: add more consty consts to be more constish.
* Desktop: properly handle autostarted applications.

applications/power/power_cli.c

@@ -8,6 +8,7 @@
 void power_cli_off(Cli* cli, string_t args) {
     Power* power = furi_record_open("power");
     printf("It's now safe to disconnect USB from your flipper\r\n");
+    osDelay(666);
     power_off(power);
 }