configs: at91: Remove CONFIG_SYS_EXTRA_OPTIONS assignment

To remove the assignment of CONFIG_SYS_EXTRA_OPTIONS option,
which is deprecated, use the CONFIG_XXXX_BOOT options to
indicate the boot media, and the SoC is selected by the board.

Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
diff --git a/include/configs/at91sam9m10g45ek.h b/include/configs/at91sam9m10g45ek.h
index 36acaa5..2957da9 100644
--- a/include/configs/at91sam9m10g45ek.h
+++ b/include/configs/at91sam9m10g45ek.h
@@ -80,7 +80,7 @@
 #define CONFIG_SYS_MEMTEST_START	CONFIG_SYS_SDRAM_BASE
 #define CONFIG_SYS_MEMTEST_END		0x23e00000
 
-#ifdef CONFIG_SYS_USE_NANDFLASH
+#ifdef CONFIG_NAND_BOOT
 /* bootstrap + u-boot + env in nandflash */
 #define CONFIG_ENV_OFFSET		0x120000
 #define CONFIG_ENV_OFFSET_REDUND	0x100000
@@ -89,7 +89,7 @@
 #define CONFIG_BOOTCOMMAND						\
 	"nand read 0x70000000 0x200000 0x300000;"			\
 	"bootm 0x70000000"
-#elif CONFIG_SYS_USE_MMC
+#elif CONFIG_SD_BOOT
 /* bootstrap + u-boot + env + linux in mmc */
 #define CONFIG_ENV_SIZE		0x4000
 
@@ -115,7 +115,7 @@
 
 #define CONFIG_SYS_MONITOR_LEN		0x80000
 
-#ifdef CONFIG_SYS_USE_MMC
+#ifdef CONFIG_SD_BOOT
 
 #define CONFIG_SPL_BSS_START_ADDR	0x70000000
 #define CONFIG_SPL_BSS_MAX_SIZE		0x00080000
@@ -125,7 +125,7 @@
 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION	1
 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME		"u-boot.img"
 
-#elif CONFIG_SYS_USE_NANDFLASH
+#elif CONFIG_NAND_BOOT
 #define CONFIG_SPL_NAND_DRIVERS
 #define CONFIG_SPL_NAND_BASE
 #define CONFIG_SPL_NAND_ECC