armv8: ls2080a: Drop macro CONFIG_LS2080A

Use CONFIG_ARCH_LS2080A instead.

Signed-off-by: York Sun <york.sun@nxp.com>
diff --git a/configs/ls2080ardb_nand_defconfig b/configs/ls2080ardb_nand_defconfig
index 81987fe..cd57374 100644
--- a/configs/ls2080ardb_nand_defconfig
+++ b/configs/ls2080ardb_nand_defconfig
@@ -10,7 +10,7 @@
 CONFIG_FIT_VERBOSE=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
-CONFIG_SYS_EXTRA_OPTIONS="NAND, LS2080A"
+CONFIG_SYS_EXTRA_OPTIONS="NAND"
 CONFIG_BOOTDELAY=10
 CONFIG_SPL=y
 CONFIG_SPL_ENV_SUPPORT=y