Update expected logs and log output for DMOD-Boot startup; ensure consistency in log messages

Author: JohnAmadis

configs/renode/expected_logs.txt

@@ -2,4 +2,4 @@
 # Each line is a pattern that must appear in the monitor-gdb output
 # Lines starting with # are comments and empty lines are ignored
 
-stm32f746xg@/>
+DMOD-Boot started

src/main.c

@@ -280,8 +280,6 @@ int main(int argc, char** argv)
     dmlog_ctx_t ctx = dmlog_create(logs_start, logs_size);
     dmlog_set_as_default(ctx);
 
-    dmlog_puts(ctx, "DMOD-Boot started\n");
-
     void* heap_start = &__heap_start__;
     void* heap_end = &__heap_end__;
     size_t heap_size = (size_t)((uintptr_t)heap_end - (uintptr_t)heap_start);
@@ -335,6 +333,9 @@ int main(int argc, char** argv)
     // Load startup.dmp if embedded in ROM
     load_embedded_startup_dmp();
 
+    // Mark that the boot process is done
+    dmlog_puts(ctx, "DMOD-Boot started\n");
+
     // Start main module if loaded
     start_main_module(mainModule);