It seems recent arm gcc versions no longer build correctly using the
"--specs=nano.specs --specs=nosys.specs" linker flags. Replace those
linker flags with "-nostdlib -lgcc -lc_nano".
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Rename the linker script so the build does not have any conflicts with
the armcm_boot.d dependency file.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>