emulators/mame: fix build on armv7

Mame fails to link on armv7 due to an address space exhaustion in lld.
As a bandaid, tell lld to not generate symbols. This frees up enough
address space to make mame link.

PR: 271374
MFH: 2023Q2
Approved by: agh@riseup.net (maintainer)

(cherry picked from commit 9fb2d7b2e7473d6bf8bb18d5e457ed4c7ac933df)