Convert CONFIG_FLASH_SPANSION_S29WS_N et al to Kconfig

This converts the following to Kconfig:

   CONFIG_FLASH_SPANSION_S29WS_N
   CONFIG_FLASH_VERIFY
   CONFIG_FSL_FM_10GEC_REGULAR_NOTATION
   CONFIG_FSL_ISBC_KEY_EXT
   CONFIG_FSL_TRUST_ARCH_v1
   CONFIG_FSL_SDHC_V2_3
   CONFIG_MAX_DSP_CPUS
   CONFIG_MIU_2BIT_INTERLEAVED
   CONFIG_SERIAL_BOOT
   CONFIG_SPI_BOOTING
   CONFIG_X86EMU_RAW_IO

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/powerpc/cpu/mpc85xx/Kconfig b/arch/powerpc/cpu/mpc85xx/Kconfig
index f236156..721dafc 100644
--- a/arch/powerpc/cpu/mpc85xx/Kconfig
+++ b/arch/powerpc/cpu/mpc85xx/Kconfig
@@ -1324,6 +1324,11 @@
 config SYS_ETVPE_CLK
 	int
 	default 1
+
+config MAX_DSP_CPUS
+	int
+	default 12 if ARCH_B4860
+	default 2 if ARCH_B4420
 endif
 
 config SYS_L2_SIZE_256KB