arc: Rename AXS101 board to more generic AXS10x

As of now we have 2 flavors of ARC SDP boards:
 1) AXS101 - with ARC770 in ASIC
 2) AXS103 - with ARC HS38 in FPGA

Both options share exactly the same base-board and only differ with
CPU-tiles in use. That means all peripherals are the same (they are
implemented in FPGA on the base-board) and so generic board could be
used for both.

While at it:
 * Recreated defconfigs with savedefconfig
 * In include/configs/axs10x.h numerical sizes replaced with
defines from linux/sizes.h for better readability.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/board/synopsys/axs10x/Makefile b/board/synopsys/axs10x/Makefile
new file mode 100644
index 0000000..e29d520
--- /dev/null
+++ b/board/synopsys/axs10x/Makefile
@@ -0,0 +1,8 @@
+#
+# Copyright (C) 2013-2016 Synopsys, Inc. All rights reserved.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	+= axs10x.o
+obj-$(CONFIG_CMD_NAND) += nand.o