Don't copy the Linux src tree if --linux-dir is not withing ARC_GNU

2013-03-15  Vineet Gupta <vgupta@synopsys.com>

	* build-uclibc.sh: No need to copy Linux sources

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Allow a defconfig based build if that exists in uClibc

2013-03-15  Vineet Gupta <vgupta@synopsys.com>

	* build-uclibc.sh: Allow a defconfig based uClibc build

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Merge pull request #3 from foss-for-synopsys-dwc-arc-processors/vineet-fixes

Vineet fixes for uClibc defconfig and no copying of Linux

2013-03-15  Vineet Gupta <vgupta@synopsys.com>

	* build-uclibc.sh: Allow a defconfig based uClibc build. Do a
	distclean and also increase the verbosity

2013-03-15  Vineet Gupta <vgupta@synopsys.com>

	* build-uclibc.sh: No need to copy Linux sources