linker: common-rom: tweak section naming to feet all linkers

MWDT toolchain adds additional suffix to sections name in case of
ffunction-sections / fdata-sections are enabled.

The 40d36537 commit
(device: add post-process of elf file to manage device handles)
breaks linkage with MWDT toolchain as it adds new sections
which are not meet MWDT requirements.

Let's pick a single set of rules and syntax that work for all
toolchain.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>