Roll src/third_party/cros_system_api/ 9488a16bb..9b9ccf7ac (7 commits)

https://chromium.googlesource.com/chromiumos/platform2/system_api.git/+log/9488a16bbe3d..9b9ccf7ac88a

$ git log 9488a16bb..9b9ccf7ac --date=short --no-merges --format='%ad %ae %s'
2019-09-27 yusukes system_api: Add num_cores_disabled to StartArcMiniContainerRequest
2019-09-23 nverne vm_host_tools, system_api: Add top level methods for container upgrade.
2019-09-23 lepton vm_tools: arcvm: Add support for Android fstab.
2019-09-25 ejcaruso power: add method for checking the presence of a color ALS
2019-09-06 smbarber system_api: permission_broker: add methods for loopback TCP lockdown
2019-09-24 smbarber system_api: permission_broker: remove unused VPN methods
2019-09-25 ejcaruso power: add AmbientColorTemperatureChanged signal

Created with:
  roll-dep src/third_party/cros_system_api

BUG=b:139752657
TEST=ninja

Change-Id: Ie549b477b5cedf526c13c7c62c9406e5545900be
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1834874
Auto-Submit: Yusuke Sato <yusukes@chromium.org>
Commit-Queue: Hidehiko Abe <hidehiko@chromium.org>
Reviewed-by: Hidehiko Abe <hidehiko@chromium.org>
Cr-Commit-Position: refs/heads/master@{#702050}

DEPS

@@ -877,7 +877,7 @@ deps = {
 
   # For Linux and Chromium OS.
   'src/third_party/cros_system_api': {
-      'url': Var('chromium_git') + '/chromiumos/platform2/system_api.git' + '@' + '9488a16bbe3da08122d8b42712178aaa84e46d16',
+      'url': Var('chromium_git') + '/chromiumos/platform2/system_api.git' + '@' + '9b9ccf7ac88ac67a2fe88bf9beeb0b07cf163d76',
       'condition': 'checkout_linux',
   },