Add support for --asm option when using elf2e32 in the "expgen" recipe - see bug 2979 and bug 1405
System Definition version 3 Support
This is only prototype support for testing the reading of single
"package" files. The implementation was submitted by Bob Rosenberg
and has been regression tested by the Raptor team. Testing on real
sysdef files is being carried out by the Symbian Foundation.