powerpc: T1024RDB: Remove macro CONFIG_T1024RDB

Use TARGET_T1024RDB from Kconfig instead.

Signed-off-by: York Sun <york.sun@nxp.com>
[trini: Get missing hunk in board/freescale/t102xrdb/ddr.c]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/T1024RDB_SDCARD_defconfig b/configs/T1024RDB_SDCARD_defconfig
index c6fdb22..8ef312f 100644
--- a/configs/T1024RDB_SDCARD_defconfig
+++ b/configs/T1024RDB_SDCARD_defconfig
@@ -12,7 +12,7 @@
 CONFIG_FIT_VERBOSE=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
-CONFIG_SYS_EXTRA_OPTIONS="T1024RDB,RAMBOOT_PBL,SPL_FSL_PBL,SDCARD"
+CONFIG_SYS_EXTRA_OPTIONS="RAMBOOT_PBL,SPL_FSL_PBL,SDCARD"
 CONFIG_BOOTDELAY=10
 CONFIG_SILENT_CONSOLE=y
 CONFIG_SYS_CONSOLE_IS_IN_ENV=y