* use the 'leave' instruction on 80186+

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@24378 3ad0048d-3df7-0310-abae-a5850022a9f2
patch by Michael Ring: 
+ support of several armv6m MCUs for arm-embedded
* renamed lpc1343 unit to lpc13xx
+ more lpc13xx MCUs added


git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@24379 3ad0048d-3df7-0310-abae-a5850022a9f2