configs: sama5d27_som1_ek: qspi: use common memory layout

Use the qspi memory layout defined in at91-sama5_common - it aligns
with the 8 Mbyte flash (sst26vf064b-104i/sn) available in sama5d27_som1_ek.
Signed-off-by: NTudor Ambarus <tudor.ambarus@microchip.com>

include/configs/sama5d27_som1_ek.h

@@ -43,13 +43,6 @@
 #endif
 
 #ifdef CONFIG_QSPI_BOOT
-#define CONFIG_ENV_OFFSET		0xb0000
-#define CONFIG_ENV_SIZE			0x10000
-#define CONFIG_ENV_SECT_SIZE		0x10000
-#define CONFIG_BOOTCOMMAND		"sf probe 0; "				\
-					"sf read 0x21000000 0xc0000 0x20000; "	\
-					"sf read 0x22000000 0xe0000 0x400000; "	\
-					"bootz 0x22000000 - 0x21000000"
 #undef CONFIG_BOOTARGS
 #define CONFIG_BOOTARGS \
 	"console=ttyS0,115200 earlyprintk root=/dev/mmcblk0p2 rw rootwait"