migrate out of flashrom deprecated options

This change replaces --diff and --fast-verify for the supported
equivalent flashrom options

Signed-off-by: Daniel Campello <campello@chromium.org>
Change-Id: I8c48c7f819f968c3ddd94278415e5e9e0ef93924
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52717
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>

src/vendorcode/google/chromeos/build-snow.sh

@@ -28,7 +28,7 @@ fast_flash_image() {
   local diff_file="$2"
   dut-control spi2_buf_en:on spi2_buf_on_flex_en:on spi2_vref:pp1800
   sudo ${FLASHROM} -p ft2232_spi:type=servo-v2,port=a -w "$image_file" -V \
-    --noverify --ignore-fmap --diff "$diff_file"
+    --noverify --flash-contents "$diff_file"
   dut-control spi2_buf_en:off spi2_buf_on_flex_en:off spi2_vref:off
 }
 

util/mma/mma_setup_test.sh

@@ -86,7 +86,7 @@ show_usage() {
 
 write_flash() {
 	printf "Writing back flash contents "${flashrom_temp_image}"\n"
-	flashrom -p host -w "${flashrom_temp_image}" --fast-verify || \
+	flashrom -p host -w "${flashrom_temp_image}" --noverify-all || \
 		{
 			printf "failed to read flash\n" ;
 			exit -1;