fix configuration wrt elf2flt

The buildroot toolchain is installed in $(STAGING_DIR)/usr/bin and not
in $(STAGING_DIR)/bin so let,s adjust the --prefix accordingly.

Also the BFLT binary format is always stripped by definition, so it is
incompatible with any kind of stripping option.

Signed-off-by: Nicolas Pitre <nico@cam.org>
2 files changed