boards: ls2080: Fix default bootargs

A white space is missing in multiple-line string for bootargs.

Signed-off-by: York Sun <york.sun@nxp.com>

include/configs/ls2080a_common.h

@@ -260,7 +260,7 @@ unsigned long long get_qixis_addr(void);
 	" 0x580800000 \0"
 
 #define CONFIG_BOOTARGS		"console=ttyS0,115200 root=/dev/ram0 " \
-				"earlycon=uart8250,mmio,0x21c0500" \
+				"earlycon=uart8250,mmio,0x21c0500 " \
 				"ramdisk_size=0x2000000 default_hugepagesz=2m" \
 				" hugepagesz=2m hugepages=256"
 #define CONFIG_BOOTCOMMAND	"fsl_mc apply dpl 0x580700000 &&" \

include/configs/ls2080ardb.h

@@ -333,7 +333,7 @@ unsigned long get_board_sys_clk(void);
 
 #undef CONFIG_BOOTARGS
 #define CONFIG_BOOTARGS		"console=ttyS1,115200 root=/dev/ram0 " \
-				"earlycon=uart8250,mmio,0x21c0600" \
+				"earlycon=uart8250,mmio,0x21c0600 " \
 				"ramdisk_size=0x2000000 default_hugepagesz=2m" \
 				" hugepagesz=2m hugepages=256"