Fix cause of link failures in CI that necessitates ignore-32bit in run-make tests

[tgnottingham]

Some run-make tests require an ignore-32bit directive as a workaround for link failures that occur during CI. #76256 and #77901 added or modified tests to include this directive in order to avoid at least this error: arm-none-eabi-gcc: error: unrecognized command line option '-m64'.

I assume that this shouldn't be necessary, and that there is actually some deficiency in our CI build system that we can fix.

[tblah]

This also affects 64-bit RISC-V

Never mind, it may not be related. Sorry for the noise.