component updater: set EVN major 720 for crostini

BUG=chromium:894919
TEST=none

Change-Id: I03c7f9332ca2fcf33e908a3ad42f9651d5406cba
Reviewed-on: https://chromium-review.googlesource.com/c/1279288Reviewed-by: Xiaochu Liu <xiaochu@chromium.org>
Reviewed-by: Joshua Pawlicki <waffles@chromium.org>
Commit-Queue: Stephen Barber <smbarber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#600656}

chrome/browser/component_updater/cros_component_installer_chromeos.cc

@@ -34,7 +34,7 @@ constexpr char kComponentsRootPath[] = "cros-components";
 const ComponentConfig kConfigs[] = {
     {"epson-inkjet-printer-escpr", "3.0",
      "1913a5e0a6cad30b6f03e176177e0d7ed62c5d6700a9c66da556d7c3f5d6a47e"},
-    {"cros-termina", "710.1",
+    {"cros-termina", "720.1",
      "e9d960f84f628e1f42d05de4046bb5b3154b6f1f65c08412c6af57a29aecaffb"},
     {"rtanalytics-light", "7.0",
      "69f09d33c439c2ab55bbbe24b47ab55cb3f6c0bd1f1ef46eefea3216ec925038"},