Update to add support for MSP430-GCC 4.6 which moved things around;

Update to add support for MSP430-GCC 4.6 which moved things around;
 - Use standard linker scripts, existing ones no longer work
 - Refer to MCUs as 'msp430fZZZZ' instead of 'msp430xZZZZ', the 'x'
   references no longer work
 - Rename lib/msp430xZZZZ to msp430fZZZZ to simplify compiling with
   new MCU name
 - Compiles clean against all platforms, tested against hardware for
   gf20, gf30, telosb, nhb12

git-svn-id: https://svn.code.sf.net/p/goodfet/code/trunk@1082 12e2690d-a6be-4b82-a7b7-67c4a43b65c8