this fixes the build breakage on stm32-based platforms.
In the linker script, remove the ASSERT since this macro is not designed
to work in that context and this size condition is already verified by
the linker by setting the "length" of the "FLASH" memory region.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BUG=None
TEST=make BOARD=link && make BOARD=daisy
boot on Link and Daisy
Change-Id: I08964749d44f47caa0a359bc93c303a9611e5d73