www/firefox: unbreak on 11.3 aarch64/amd64 after r539972

mozglue/baseprofiler/core/shared-libraries-linux.cc:374:34: error: use of undeclared identifier 'NT_GNU_BUILD_ID'

if (note_header->n_type == NT_GNU_BUILD_ID) break;
                           ^

Reported by: leres, pkg-fallout