soc: xtensa: linker: Update linker scripts for C++ build

When we link in crtbegin.o for C++ exception support we end up pulling
in the .tm_clone_table section.  We need to update the linker scripts
to handle this.  soc/xtensa/sample_controller/linker.ld was already
updated, this fixes the others.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>