riscv: ae350: dts: Remove the unnecessary space in bootargs

There are two spaces before "debug' in bootargs. Drop one.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>

arch/riscv/dts/ae350_32.dts

@@ -16,7 +16,7 @@
 	};
 
 	chosen {
-		bootargs = "console=ttyS0,38400n8  debug loglevel=7";
+		bootargs = "console=ttyS0,38400n8 debug loglevel=7";
 		stdout-path = "uart0:38400n8";
 	};
 

arch/riscv/dts/ae350_64.dts

@@ -16,7 +16,7 @@
 	};
 
 	chosen {
-		bootargs = "console=ttyS0,38400n8  debug loglevel=7";
+		bootargs = "console=ttyS0,38400n8 debug loglevel=7";
 		stdout-path = "uart0:38400n8";
 	};