[meson] Ensure we don't include a build-id in the ROM
[meson] Ensure we don't include a build-id in the ROM

This is a followup patch from 5e2c8db45819acaa4f1c3b01cd958abd7e13b26a
which ensured we don't see a build-id in the SW binaries. This patche
ensures it doesn't make it into the ROM binary.

Signed-off-by: Alistair Francis <52ecf00b70a50079ae8d5fa09b9af6904950b63c@wdc.com>

lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan