Rename SPL_ETH_SUPPORT to SPL_ETH

Rename this option so that CONFIG_IS_ENABLED can be used with it.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/am335x_evm_defconfig b/configs/am335x_evm_defconfig
index c48be6b..c18c1ec 100644
--- a/configs/am335x_evm_defconfig
+++ b/configs/am335x_evm_defconfig
@@ -14,7 +14,7 @@
 CONFIG_SYS_CONSOLE_INFO_QUIET=y
 CONFIG_ARCH_MISC_INIT=y
 CONFIG_SPL_FIT_IMAGE_TINY=y
-CONFIG_SPL_ETH_SUPPORT=y
+CONFIG_SPL_ETH=y
 # CONFIG_SPL_FS_EXT4 is not set
 CONFIG_SPL_MTD_SUPPORT=y
 CONFIG_SPL_MUSB_NEW_SUPPORT=y
diff --git a/configs/am335x_guardian_defconfig b/configs/am335x_guardian_defconfig
index 2e31f20..75c196b 100644
--- a/configs/am335x_guardian_defconfig
+++ b/configs/am335x_guardian_defconfig
@@ -29,7 +29,7 @@
 CONFIG_SPL_SEPARATE_BSS=y
 # CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR is not set
 CONFIG_SPL_ENV_SUPPORT=y
-CONFIG_SPL_ETH_SUPPORT=y
+CONFIG_SPL_ETH=y
 CONFIG_SPL_I2C_SUPPORT=y
 CONFIG_SPL_MUSB_NEW_SUPPORT=y
 CONFIG_SPL_NAND_DRIVERS=y
diff --git a/configs/am43xx_evm_defconfig b/configs/am43xx_evm_defconfig
index ae1fffd..0ace38d 100644
--- a/configs/am43xx_evm_defconfig
+++ b/configs/am43xx_evm_defconfig
@@ -15,7 +15,7 @@
 CONFIG_BOOTCOMMAND="run findfdt; run finduuid; run distro_bootcmd"
 CONFIG_SYS_CONSOLE_INFO_QUIET=y
 # CONFIG_MISC_INIT_R is not set
-CONFIG_SPL_ETH_SUPPORT=y
+CONFIG_SPL_ETH=y
 CONFIG_SPL_MTD_SUPPORT=y
 CONFIG_SPL_NAND_DRIVERS=y
 CONFIG_SPL_NAND_ECC=y
diff --git a/configs/am43xx_hs_evm_defconfig b/configs/am43xx_hs_evm_defconfig
index 62c1ecb..94b5fd7 100644
--- a/configs/am43xx_hs_evm_defconfig
+++ b/configs/am43xx_hs_evm_defconfig
@@ -24,7 +24,7 @@
 CONFIG_BOOTCOMMAND="run findfdt; run finduuid; run distro_bootcmd"
 CONFIG_SYS_CONSOLE_INFO_QUIET=y
 # CONFIG_MISC_INIT_R is not set
-CONFIG_SPL_ETH_SUPPORT=y
+CONFIG_SPL_ETH=y
 CONFIG_SPL_MTD_SUPPORT=y
 CONFIG_SPL_NAND_DRIVERS=y
 CONFIG_SPL_NAND_ECC=y