work_92105: remove unused CONFIG_LPC32XX_SPL configuration option

The CONFIG_LPC32XX_SPL option from board include file has never been
used, it is safe to remove it.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>

include/configs/work_92105.h

@@ -25,9 +25,6 @@
 #define CONFIG_SKIP_LOWLEVEL_INIT
 #endif
 
-/* generate LPC32XX-specific SPL image */
-#define CONFIG_LPC32XX_SPL
-
 /*
  * Memory configurations
  */

scripts/config_whitelist.txt

@@ -1179,7 +1179,6 @@ CONFIG_LPC32XX_NAND_SLC_WHOLD
 CONFIG_LPC32XX_NAND_SLC_WSETUP
 CONFIG_LPC32XX_NAND_SLC_WWIDTH
 CONFIG_LPC32XX_SDRAM_
-CONFIG_LPC32XX_SPL
 CONFIG_LPC32XX_SSP_TIMEOUT
 CONFIG_LPC_BASE
 CONFIG_LPC_IO_BASE