fix tab that was added

Signed-off-by: Owen-sz <owen@fyralabs.com>

Author: Owen-sz

src/kernel/arch/riscv64/generate_bootstub.py

@@ -246,7 +246,7 @@ def main():
     arg_parser.add_argument("bootstub", type=Path)
     arg_parser.add_argument("bootstub_startaddr", type=lambda x: int(x,0))
     args = arg_parser.parse_args()
-    
+
     # Configure the logger.
     logging.basicConfig(
         format="{message}",