Add a sample config.

Signed-off-by: Alexey Neyman <stilor@att.net>

samples/aarch64-unknown-linux-uclibcgnueabi/crosstool.config

@@ -0,0 +1,14 @@
+CT_ARCH_64=y
+CT_ARCH_arm=y
+CT_TARGET_VENDOR=""
+CT_KERNEL_linux=y
+CT_BINUTILS_LINKER_LD_GOLD=y
+CT_BINUTILS_GOLD_THREADS=y
+CT_BINUTILS_LD_WRAPPER=y
+CT_BINUTILS_PLUGINS=y
+CT_LIBC_uClibc=y
+CT_CC_LANG_CXX=y
+CT_DEBUG_gdb=y
+CT_GDB_NATIVE=y
+CT_DEBUG_strace=y
+CT_GETTEXT=y

samples/aarch64-unknown-linux-uclibcgnueabi/reported.by

@@ -0,0 +1,3 @@
+reporter_name="Alexey Neyman"
+reporter_url=""
+reporter_comment="Sample AArch64/uClibc-ng configuration."