Convert CONFIG_ENV_IS_IN_SPI_FLASH et al to Kconfig

This converts the following to Kconfig:
   CONFIG_ENV_IS_IN_SPI_FLASH
   CONFIG_ENV_IS_NOWHERE
   CONFIG_ENV_OFFSET
   CONFIG_ENV_OVERWRITE
   CONFIG_ENV_SECT_SIZE
   CONFIG_SYS_MMC_ENV_DEV
   CONFIG_SYS_MMC_ENV_PART

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/cgtqmx8_defconfig b/configs/cgtqmx8_defconfig
index 3d1c438..f69b566 100644
--- a/configs/cgtqmx8_defconfig
+++ b/configs/cgtqmx8_defconfig
@@ -45,6 +45,7 @@
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_FAT=y
 CONFIG_SPL_OF_CONTROL=y
+CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_SYS_MMC_ENV_DEV=1
 CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
diff --git a/configs/imx8mn_beacon_2g_defconfig b/configs/imx8mn_beacon_2g_defconfig
index 61ab07e..5f116b7 100644
--- a/configs/imx8mn_beacon_2g_defconfig
+++ b/configs/imx8mn_beacon_2g_defconfig
@@ -61,6 +61,7 @@
 CONFIG_OF_CONTROL=y
 CONFIG_SPL_OF_CONTROL=y
 CONFIG_OF_SPL_REMOVE_PROPS="interrupt-parent interrupts"
+CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_SYS_MMC_ENV_DEV=2
diff --git a/configs/imx8mn_beacon_defconfig b/configs/imx8mn_beacon_defconfig
index 3f5e23f..52c7a7e 100644
--- a/configs/imx8mn_beacon_defconfig
+++ b/configs/imx8mn_beacon_defconfig
@@ -61,6 +61,7 @@
 CONFIG_OF_CONTROL=y
 CONFIG_SPL_OF_CONTROL=y
 CONFIG_OF_SPL_REMOVE_PROPS="interrupt-parent interrupts"
+CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_SYS_MMC_ENV_DEV=2
diff --git a/configs/imx8ulp_evk_defconfig b/configs/imx8ulp_evk_defconfig
index b8f18c0..129931f 100644
--- a/configs/imx8ulp_evk_defconfig
+++ b/configs/imx8ulp_evk_defconfig
@@ -41,6 +41,7 @@
 CONFIG_CMD_REGULATOR=y
 CONFIG_CMD_EXT4_WRITE=y
 CONFIG_SPL_OF_CONTROL=y
+CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
 CONFIG_NET_RANDOM_ETHADDR=y
diff --git a/configs/octeontx2_95xx_defconfig b/configs/octeontx2_95xx_defconfig
index 7bbf07b..de5ce1c 100644
--- a/configs/octeontx2_95xx_defconfig
+++ b/configs/octeontx2_95xx_defconfig
@@ -63,6 +63,7 @@
 CONFIG_EFI_PARTITION=y
 CONFIG_PARTITION_TYPE_GUID=y
 CONFIG_OF_BOARD=y
+CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_USE_ENV_SPI_BUS=y
 CONFIG_ENV_SPI_BUS=0
diff --git a/configs/octeontx2_96xx_defconfig b/configs/octeontx2_96xx_defconfig
index 4ab2395..011bc79 100644
--- a/configs/octeontx2_96xx_defconfig
+++ b/configs/octeontx2_96xx_defconfig
@@ -64,6 +64,7 @@
 CONFIG_EFI_PARTITION=y
 CONFIG_PARTITION_TYPE_GUID=y
 CONFIG_OF_BOARD=y
+CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_USE_ENV_SPI_BUS=y
 CONFIG_ENV_SPI_BUS=0
diff --git a/configs/octeontx_81xx_defconfig b/configs/octeontx_81xx_defconfig
index 706cc41..d0728ac 100644
--- a/configs/octeontx_81xx_defconfig
+++ b/configs/octeontx_81xx_defconfig
@@ -66,6 +66,7 @@
 CONFIG_EFI_PARTITION=y
 CONFIG_PARTITION_TYPE_GUID=y
 CONFIG_OF_BOARD=y
+CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_USE_ENV_SPI_BUS=y
 CONFIG_ENV_SPI_BUS=0
diff --git a/configs/octeontx_83xx_defconfig b/configs/octeontx_83xx_defconfig
index 2073375..6c9609b 100644
--- a/configs/octeontx_83xx_defconfig
+++ b/configs/octeontx_83xx_defconfig
@@ -63,6 +63,7 @@
 CONFIG_EFI_PARTITION=y
 CONFIG_PARTITION_TYPE_GUID=y
 CONFIG_OF_BOARD=y
+CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_USE_ENV_SPI_BUS=y
 CONFIG_ENV_SPI_BUS=0
diff --git a/configs/synquacer_developerbox_defconfig b/configs/synquacer_developerbox_defconfig
index c458bdd..4fb0fba 100644
--- a/configs/synquacer_developerbox_defconfig
+++ b/configs/synquacer_developerbox_defconfig
@@ -38,6 +38,7 @@
 CONFIG_CMD_MTDPARTS=y
 CONFIG_CMD_LOG=y
 CONFIG_PARTITION_TYPE_GUID=y
+CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_USE_ENV_SPI_BUS=y
 CONFIG_ENV_SPI_BUS=0