powerpc: BSC9131RDB: Remove CONFIG_BSC9131RDB macro

This macro CONFIG_BSC9131RDB is no longer needed.

Signed-off-by: York Sun <york.sun@nxp.com>
diff --git a/configs/BSC9131RDB_NAND_SYSCLK100_defconfig b/configs/BSC9131RDB_NAND_SYSCLK100_defconfig
index 484baf8..e88e234 100644
--- a/configs/BSC9131RDB_NAND_SYSCLK100_defconfig
+++ b/configs/BSC9131RDB_NAND_SYSCLK100_defconfig
@@ -7,7 +7,7 @@
 CONFIG_FIT_VERBOSE=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
-CONFIG_SYS_EXTRA_OPTIONS="BSC9131RDB,NAND,SYS_CLK_100"
+CONFIG_SYS_EXTRA_OPTIONS="NAND,SYS_CLK_100"
 CONFIG_BOOTDELAY=10
 CONFIG_SYS_CONSOLE_IS_IN_ENV=y
 CONFIG_SPL=y
diff --git a/configs/BSC9131RDB_NAND_defconfig b/configs/BSC9131RDB_NAND_defconfig
index ad24afa..5c4d45d 100644
--- a/configs/BSC9131RDB_NAND_defconfig
+++ b/configs/BSC9131RDB_NAND_defconfig
@@ -7,7 +7,7 @@
 CONFIG_FIT_VERBOSE=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
-CONFIG_SYS_EXTRA_OPTIONS="BSC9131RDB,NAND"
+CONFIG_SYS_EXTRA_OPTIONS="NAND"
 CONFIG_BOOTDELAY=10
 CONFIG_SYS_CONSOLE_IS_IN_ENV=y
 CONFIG_SPL=y
diff --git a/configs/BSC9131RDB_SPIFLASH_SYSCLK100_defconfig b/configs/BSC9131RDB_SPIFLASH_SYSCLK100_defconfig
index 4904da4..23a74c3 100644
--- a/configs/BSC9131RDB_SPIFLASH_SYSCLK100_defconfig
+++ b/configs/BSC9131RDB_SPIFLASH_SYSCLK100_defconfig
@@ -5,7 +5,7 @@
 CONFIG_FIT_VERBOSE=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
-CONFIG_SYS_EXTRA_OPTIONS="BSC9131RDB,SPIFLASH,SYS_CLK_100"
+CONFIG_SYS_EXTRA_OPTIONS="SPIFLASH,SYS_CLK_100"
 CONFIG_BOOTDELAY=10
 CONFIG_SYS_CONSOLE_IS_IN_ENV=y
 CONFIG_HUSH_PARSER=y
diff --git a/configs/BSC9131RDB_SPIFLASH_defconfig b/configs/BSC9131RDB_SPIFLASH_defconfig
index 47b4486..2c5d637 100644
--- a/configs/BSC9131RDB_SPIFLASH_defconfig
+++ b/configs/BSC9131RDB_SPIFLASH_defconfig
@@ -5,7 +5,7 @@
 CONFIG_FIT_VERBOSE=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
-CONFIG_SYS_EXTRA_OPTIONS="BSC9131RDB,SPIFLASH"
+CONFIG_SYS_EXTRA_OPTIONS="SPIFLASH"
 CONFIG_BOOTDELAY=10
 CONFIG_SYS_CONSOLE_IS_IN_ENV=y
 CONFIG_HUSH_PARSER=y