Avoid supplying unsupported linker flags

This commit aims to fix the MacOS build of the
serialization library by, more generally, ensuring
unsupported linker flags are not supplied to the
selected linker.

Note: The "check_linker_flag" utility is used by
this change which requires cmake >= 3.18,
therefore, the minimum supported cmake version in
this project has been bumped from 3.13.4 to 3.18.

Signed-off-by: Luke Hutton <luke.hutton@arm.com>
Change-Id: I8434c1fb7237e011fa3df720de79e2053b8c9fbb