ARM: at91: trival: fix typo for the nand partition name

We should use 'env' to present environment instead of 'evn'
Signed-off-by: NJosh Wu <josh.wu@atmel.com>

include/configs/at91-sama5_common.h

@@ -64,7 +64,7 @@
 #define CONFIG_BOOTARGS							\
 	"console=ttyS0,115200 earlyprintk "				\
 	"mtdparts=atmel_nand:256k(bootstrap)ro,512k(uboot)ro,"		\
-	"256K(env),256k(evn_redundent),256k(spare),"			\
+	"256K(env),256k(env_redundent),256k(spare),"			\
 	"512k(dtb),6M(kernel)ro,-(rootfs) "				\
 	"rootfstype=ubifs ubi.mtd=7 root=ubi0:rootfs"
 #endif

include/configs/at91sam9rlek.h

@@ -171,7 +171,7 @@
 #define CONFIG_BOOTARGS		\
 				"console=ttyS0,115200 earlyprintk "				\
 				"mtdparts=atmel_nand:256k(bootstrap)ro,512k(uboot)ro,"		\
-				"256K(env),256k(evn_redundent),256k(spare),"			\
+				"256K(env),256k(env_redundent),256k(spare),"			\
 				"512k(dtb),6M(kernel)ro,-(rootfs) "				\
 				"rootfstype=ubifs ubi.mtd=7 root=ubi0:rootfs"