icE1usb fw: Add support for the ICE1USB_DEV_GET_FW_BUILD control request

This was already defined but not implemented

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Change-Id: Id65734153c92ef87bc9ecf967447e9bf11804f24
diff --git a/firmware/ice40-riscv/icE1usb/fw_app.c b/firmware/ice40-riscv/icE1usb/fw_app.c
index 41ef3ab..880d2d6 100644
--- a/firmware/ice40-riscv/icE1usb/fw_app.c
+++ b/firmware/ice40-riscv/icE1usb/fw_app.c
@@ -69,7 +69,7 @@
 
 	/* Init console IO */
 	console_init();
-	puts("Booting App image..\n");
+	printf("\n\nBooting %s\n", fw_build_str);
 
 	/* LED */
 	led_init();