Add picoChip port.

2008-09-03  Hari Sandanagobalane  <hariharan@picochip.com>

	Add picoChip port.
	* MAINTAINERS: Add picoChip maintainers.
	libgcc/
	* config.host: Add picochip-*-*.
	gcc/
	* doc/extend.texi: Document picoChip builtin functions.
	* doc/invoke.texi: Document picoChip options.
	* doc/contrib.texi: Add picoChip contribution.
	* doc/md.texi: Document picoChip constraints.
	* config.gcc: Add picochip-*-*.
	* config/picochip/: Add new port.

From-SVN: r139932