initiator: Fix overflow in percentage calculation

When drive size was larger than 8 GB, LED indicator and logged percentage
would reset to 0 midway through the transfer.

src/BlueSCSI_initiator.cpp

@@ -116,7 +116,7 @@ static void scsiInitiatorUpdateLed()
     // Update status indicator, the led blinks every 5 seconds and is on the longer the more data has been transferred
     const int period = 256;
     int phase = (millis() % period);
-    int duty = g_initiator_state.sectors_done * period / g_initiator_state.sectorcount;
+    int duty = (int64_t)g_initiator_state.sectors_done * period / g_initiator_state.sectorcount;
 
     // Minimum and maximum time to verify that the blink is visible
     if (duty < 50) duty = 50;
@@ -372,9 +372,10 @@ void scsiInitiatorMainLoop()
             g_initiator_state.target_file.flush();
 
             int speed_kbps = numtoread * g_initiator_state.sectorsize / (millis() - time_start);
-            log_f("SCSI read succeeded, sectors done: %d / %d speed %d kB/s - %.2f%%",
-                  g_initiator_state.sectors_done, g_initiator_state.sectorcount, speed_kbps,
-                  (float)(((float)g_initiator_state.sectors_done / (float)g_initiator_state.sectorcount) * 100.0));
+            log("SCSI read succeeded, sectors done: ",
+                  (int)g_initiator_state.sectors_done, " / ", (int)g_initiator_state.sectorcount,
+                  " speed ", speed_kbps, " kB/s - ",
+                  (int)(100 * (int64_t)g_initiator_state.sectors_done / g_initiator_state.sectorcount), "%");
         }
     }
 }