define FPC_ARMEL32 or FPC_ARMEB32

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28937 3ad0048d-3df7-0310-abae-a5850022a9f2
 Allow to disable __cpu_features_init by defining DISABLE_CPU_FEATURES_INIT

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28938 3ad0048d-3df7-0310-abae-a5850022a9f2
 Use 'set gnutarget  elf32-littlearm' for arm cross

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28939 3ad0048d-3df7-0310-abae-a5850022a9f2