board/andes: rearrange andes folder structure

In order to add ae350 RISC-V platform, rename ae3xx to ae300 for NDS32
architecture.

AE300 (NDS32):
- http://www.andestech.com/en/products-solutions/andeshape-platforms/ae300/
AE350 (RISC-V):
- http://www.andestech.com/en/products-solutions/andeshape-platforms/ae350-axi-based-platform-pre-integrated-with-n25f-nx25f-a25-ax25/

Signed-off-by: Yu Chien Peter Lin <peterlin@andestech.com>
Signed-off-by: Alan Kao <alankao@andestech.com>
Reviewed-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Tested-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

DEVELOPERS

@@ -2150,7 +2150,7 @@ F:	package/tcf-agent/
 N:	Nylon Chen <nylon7@andestech.com>
 F:	arch/Config.in.nds32
 F:	board/andes
-F:	configs/andes_ae3xx_defconfig
+F:	configs/andes_ae300_defconfig
 F:	toolchain/toolchain-external/toolchain-external-andes-nds32/
 
 N:	Olaf Rempel <razzor@kopf-tisch.de>

board/andes/readme.txt → board/andes/ae300/readme.txt

@@ -1,10 +1,10 @@
 Intro
 =====
 
-Andestech(nds32) AE3XX Platform
+Andestech(nds32) AE300 Platform
 
-The AE3XX prototype demonstrates the AE3XX example platform on the FPGA. 
-It is composed of one Andestech(nds32) processor and AE3XX.
+The AE300 prototype demonstrates the AE300 example platform on the FPGA.
+It is composed of one Andestech(nds32) processor and AE300.
 
 How to build it
 ===============
@@ -12,10 +12,10 @@ How to build it
 Configure Buildroot
 -------------------
 
-The andes_ae3xx_defconfig configuration is a sample configuration with
+The andes_ae300_defconfig configuration is a sample configuration with
 all that is required to bring the FPGA Development Board:
 
-  $ make andes_ae3xx_defconfig
+  $ make andes_ae300_defconfig
 
 Build everything
 ----------------

configs/andes_ae3xx_defconfig → configs/andes_ae300_defconfig

@@ -1,10 +1,10 @@
 BR2_nds32=y
-BR2_GLOBAL_PATCH_DIR="board/andes/patches/"
+BR2_GLOBAL_PATCH_DIR="board/andes/ae300/patches"
 BR2_TOOLCHAIN_EXTERNAL=y
 BR2_TOOLCHAIN_EXTERNAL_ANDES_NDS32=y
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.17"
 BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG=y
-BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/andes/ae3xx/ae3xx.fragment"
+BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/andes/ae300/ae300.fragment"
 BR2_TARGET_ROOTFS_INITRAMFS=y

toolchain/toolchain-external/toolchain-external-andes-nds32/Config.in

@@ -12,4 +12,4 @@ config BR2_TOOLCHAIN_EXTERNAL_ANDES_NDS32
 	help
 	  nds32 toolchain for the nds32 architecture. It uses GCC
 	  8.2.1, GDB 8.1.1, glibc 2.28, Binutils 2.30. It generates
-	  code that runs on ae3xx platform
+	  code that runs on ae300 platform