[Buildroot] [PATCH 1/1] [PATCH v2 1/1] boot/at91bootstrap3: add svn repository

[CHEN Xiangyu]

Hi Thomas and all,
	Sorry for the stupid mistake in before thread's patch, I copied the changes from a svn branch to git branch and missing the "AT91BOOTSTRAP3_SITE" config.
	Now I re-submitted a v2 patch, the changes as below:

	v0 --> v1 : applied Thomas's comment, fix the AT91BOOTSTRAM3_SITE missing.

	Testing done in my local setup with private SVN server, log as below:
	chenxy at linux-0qql:/raw/swap/buildroot-master> make at91bootstrap3-rebuild
	rm -f /raw/swap/buildroot-master/output/build/at91bootstrap3-r1193/.stamp_installed
	....
	rm -f /raw/swap/buildroot-master/output/build/at91bootstrap3-r1193/.stamp_built
	>>> at91bootstrap3 r1193 Downloading
	svn --non-interactive export --ignore-keywords 'https://myprivate.svn.com/at91bootstrap-3.10.0@r1193' 'at91bootstrap3-r1193'
	A    at91bootstrap3-r1193
	A    at91bootstrap3-r1193/.dir-locals.el
	.....
	A    at91bootstrap3-r1193/toplevel_cpp.mk
	r1193 done.
	>>> at91bootstrap3 r1193 Extracting
	gzip -d -c /raw/buildroot-at91/dl/at91bootstrap3/at91bootstrap3-r1193-br2.tar.gz | tar --strip-components=1 -C /raw/swap/buildroot-master/output/build/at91bootstrap3-r1193   -xf -
	>>> at91bootstrap3 r1193 Patching
	make[1]: Entering directory '/raw/swap/buildroot-master/output/build/at91bootstrap3-r1193'
	......
	Size of sam9x60ek-nandflashboot-uboot-3.10.0.bin is 17316 bytes
	[Succeeded] It's OK to fit into SRAM area
	[Attention] The space left for stack is 48220 bytes
	make[1]: Leaving directory '/raw/swap/buildroot-master/output/build/at91bootstrap3-r1193'
	>>> at91bootstrap3 r1193 Installing to images directory

	The final could be found under ouput/images directory, everything looks ok