spl: Kconfig: Replace CONFIG_SPL_EXT_SUPPORT to CONFIG_SPL_FS_EXT4

Replace CONFIG_SPL_EXT_SUPPORT to CONFIG_SPLY_FS_EXT4 so both
obj-$(CONFIG_$(SPL_)FS_EXT4) and CONFIG_IS_ENABLED(FS_EXT4) can be
used to control the build in both SPL and U-Boot.

Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/imx6_spl.h b/include/configs/imx6_spl.h
index 60a925d..3d9a7dc 100644
--- a/include/configs/imx6_spl.h
+++ b/include/configs/imx6_spl.h
@@ -43,7 +43,7 @@
 #endif
 
 /* Define the payload for FAT/EXT support */
-#if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_EXT_SUPPORT)
+#if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_FS_EXT4)
 # ifdef CONFIG_OF_CONTROL
 #  define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME	"u-boot-dtb.img"
 # else
diff --git a/include/configs/imx7_spl.h b/include/configs/imx7_spl.h
index 116ea1a..aca32db 100644
--- a/include/configs/imx7_spl.h
+++ b/include/configs/imx7_spl.h
@@ -38,7 +38,7 @@
 #endif
 
 /* Define the payload for FAT/EXT support */
-#if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_EXT_SUPPORT)
+#if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_FS_EXT4)
 # ifdef CONFIG_OF_CONTROL
 #  define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME	"u-boot-dtb.img"
 # else
diff --git a/include/configs/socfpga_common.h b/include/configs/socfpga_common.h
index be6750a..ea992fa 100644
--- a/include/configs/socfpga_common.h
+++ b/include/configs/socfpga_common.h
@@ -266,7 +266,7 @@
 
 /* SPL SDMMC boot support */
 #ifdef CONFIG_SPL_MMC_SUPPORT
-#if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_EXT_SUPPORT)
+#if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_FS_EXT4)
 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME		"u-boot-dtb.img"
 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION	1
 #endif
diff --git a/include/part.h b/include/part.h
index 388e130..ebca546 100644
--- a/include/part.h
+++ b/include/part.h
@@ -246,7 +246,7 @@
  */
 #ifdef CONFIG_SPL_BUILD
 # define part_print_ptr(x)	NULL
-# if defined(CONFIG_SPL_EXT_SUPPORT) || defined(CONFIG_SPL_FS_FAT) || \
+# if defined(CONFIG_SPL_FS_EXT4) || defined(CONFIG_SPL_FS_FAT) || \
 	defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION)
 #  define part_get_info_ptr(x)	x
 # else