PATCH/RFA add "access" function for ARM

[Richard Earnshaw]

This patch adds the access() function for the ARM to newlib.  
Implementation isn't perfect, since there isn't really enough information 
available to do the job properly; but it's enough to make most of the f77 
tests in the gcc testsuite that rely on this function pass.

If this is ok, could someone please install it.

R.

PS, I'm not on this mailing list; please cc me directly on any follow up.

<date>  Richard Earnshaw  <rearnsha@arm.com>

	* sys/arm/access.c: New file.
	* sys/arm/Makefile.am (lib_a_SOURCES): Add it
	* sys/arm/Makefile.in: Regenerate.
	* sys/arm/syscalls.c (_stat): New function.


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