at91: move legacy Kconfig options to subtarget

Some Kconfig options are only relevant for the legacy platforms, move
them where they belong

Signed-off-by: Florian Fainelli <florian@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42416 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/at91/config-default

 CONFIG_ALIGNMENT_TRAP=y
 CONFIG_ARCH_AT91=y
-# CONFIG_ARCH_AT91RM9200 is not set
-# CONFIG_ARCH_AT91SAM9260 is not set
-# CONFIG_ARCH_AT91SAM9261 is not set
-# CONFIG_ARCH_AT91SAM9263 is not set
-# CONFIG_ARCH_AT91SAM9G10 is not set
-# CONFIG_ARCH_AT91SAM9G20 is not set
-# CONFIG_ARCH_AT91SAM9G45 is not set
-# CONFIG_ARCH_AT91SAM9RL is not set
-CONFIG_ARCH_AT91_NONE=y
 CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y
 CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
 CONFIG_ARCH_HAVE_CUSTOM_GPIO_H=y
@@ -23,7 +14,6 @@ CONFIG_ARM=y
 CONFIG_ARM_APPENDED_DTB=y
 # CONFIG_ARM_ATAG_DTB_COMPAT is not set
 # CONFIG_ARM_CPU_SUSPEND is not set
-CONFIG_ARM_L1_CACHE_SHIFT=5
 CONFIG_ARM_NR_BANKS=8
 CONFIG_ARM_PATCH_PHYS_VIRT=y
 CONFIG_ARM_THUMB=y
@@ -43,18 +33,6 @@ CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_CLKDEV_LOOKUP=y
 CONFIG_CLONE_BACKWARDS=y
 CONFIG_CONFIGFS_FS=y
-CONFIG_CPU_32v5=y
-CONFIG_CPU_ABRT_EV5TJ=y
-CONFIG_CPU_ARM926T=y
-# CONFIG_CPU_CACHE_ROUND_ROBIN is not set
-CONFIG_CPU_CACHE_VIVT=y
-CONFIG_CPU_COPY_V4WB=y
-CONFIG_CPU_CP15=y
-CONFIG_CPU_CP15_MMU=y
-# CONFIG_CPU_DCACHE_WRITETHROUGH is not set
-# CONFIG_CPU_ICACHE_DISABLE is not set
-CONFIG_CPU_PABRT_LEGACY=y
-CONFIG_CPU_TLB_V4WBI=y
 CONFIG_CPU_USE_DOMAINS=y
 CONFIG_CRC16=y
 CONFIG_CRYPTO_CRC32C=y
@@ -208,17 +186,6 @@ CONFIG_SERIAL_ATMEL=y
 CONFIG_SERIAL_ATMEL_CONSOLE=y
 CONFIG_SERIAL_ATMEL_PDC=y
 # CONFIG_SERIAL_ATMEL_TTYAT is not set
-# CONFIG_SOC_AT91RM9200 is not set
-CONFIG_SOC_AT91SAM9=y
-CONFIG_SOC_AT91SAM9260=y
-CONFIG_SOC_AT91SAM9261=y
-CONFIG_SOC_AT91SAM9263=y
-CONFIG_SOC_AT91SAM9G45=y
-CONFIG_SOC_AT91SAM9N12=y
-CONFIG_SOC_AT91SAM9RL=y
-CONFIG_SOC_AT91SAM9X5=y
-CONFIG_SOC_SAM_V4_V5=y
-# CONFIG_SOC_SAM_V7 is not set
 CONFIG_SPARSE_IRQ=y
 CONFIG_SPI=y
 CONFIG_SPI_ATMEL=y

target/linux/at91/legacy/config-default

+# CONFIG_ARCH_AT91RM9200 is not set
+# CONFIG_ARCH_AT91SAM9260 is not set
+# CONFIG_ARCH_AT91SAM9261 is not set
+# CONFIG_ARCH_AT91SAM9263 is not set
+# CONFIG_ARCH_AT91SAM9G10 is not set
+# CONFIG_ARCH_AT91SAM9G20 is not set
+# CONFIG_ARCH_AT91SAM9G45 is not set
+# CONFIG_ARCH_AT91SAM9RL is not set
+CONFIG_ARCH_AT91_NONE=y
+CONFIG_ARM_L1_CACHE_SHIFT=5
+CONFIG_CPU_32v5=y
+CONFIG_CPU_ABRT_EV5TJ=y
+CONFIG_CPU_ARM926T=y
+# CONFIG_CPU_CACHE_ROUND_ROBIN is not set
+CONFIG_CPU_CACHE_VIVT=y
+CONFIG_CPU_COPY_V4WB=y
+CONFIG_CPU_CP15=y
+CONFIG_CPU_CP15_MMU=y
+# CONFIG_CPU_DCACHE_WRITETHROUGH is not set
+# CONFIG_CPU_ICACHE_DISABLE is not set
+CONFIG_CPU_PABRT_LEGACY=y
+CONFIG_CPU_TLB_V4WBI=y
+# CONFIG_SOC_AT91RM9200 is not set
+CONFIG_SOC_AT91SAM9=y
+CONFIG_SOC_AT91SAM9260=y
+CONFIG_SOC_AT91SAM9261=y
+CONFIG_SOC_AT91SAM9263=y
+CONFIG_SOC_AT91SAM9G45=y
+CONFIG_SOC_AT91SAM9N12=y
+CONFIG_SOC_AT91SAM9RL=y
+CONFIG_SOC_AT91SAM9X5=y
+CONFIG_SOC_SAM_V4_V5=y
+# CONFIG_SOC_SAM_V7 is not set