flashrom_tester: update syntax for --wp-range

TEST=cargo test

Signed-off-by: Daniel Campello <campello@chromium.org>
Change-Id: If17a40fba1f7d41e09e0163b353d1602c215c8db
Reviewed-on: https://review.coreboot.org/c/flashrom/+/52876
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-by: Peter Marheine <pmarheine@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
1 file changed