Enhance the base/rom extension to generate the symbol file of the rom built.
The symbol file is placed in epoc32/rom/<baseport_name>, along with the rom log and final oby file.
# component name "User Library"
component base_e32_euser
source \sf\os\kernelhwsrv\kernel\eka\common
source \sf\os\kernelhwsrv\kernel\eka\euser
binary \sf\os\kernelhwsrv\kernel\eka\euser all
exports \sf\os\kernelhwsrv\kernel\eka\euser
notes_source \component_defs\release.src
ipr A
ipr D \sf\os\kernelhwsrv\kernel\eka\euser\cbase
ipr D \sf\os\kernelhwsrv\kernel\eka\euser\epoc
ipr D \sf\os\kernelhwsrv\kernel\eka\euser\unicode
ipr D \sf\os\kernelhwsrv\kernel\eka\euser\v7_0
ipr D \sf\os\kernelhwsrv\kernel\eka\common