deploy: Use strip package from chromite

Update to use the strip package from its new chromite location instead
of the old devserver location.

BUG=b:195779731
TEST=run_tests cli/deploy_unittest.py
TEST=cros deploy localhost:9222 libdbus-sys

Change-Id: I2593222db1ef4184ca2e34d2655b2472f8fefd43
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/3295844
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Ram Chandrasekar <rchandrasekar@google.com>
Commit-Queue: Ram Chandrasekar <rchandrasekar@google.com>
diff --git a/cli/deploy.py b/cli/deploy.py
index 10801cd..077d7f8 100644
--- a/cli/deploy.py
+++ b/cli/deploy.py
@@ -20,6 +20,7 @@
 
 from chromite.cli import command
 from chromite.lib import build_target_lib
+from chromite.lib import constants
 from chromite.lib import cros_build_lib
 from chromite.lib import dlc_lib
 from chromite.lib import operation
@@ -898,7 +899,8 @@
   if strip:
     try:
       cros_build_lib.run(
-          ['strip_package', '--sysroot', sysroot] +
+          [os.path.join(constants.CHROMITE_SCRIPTS_DIR, 'strip_package'),
+           '--sysroot', sysroot] +
           [cpv.cpf for cpv in cpvs])
       packages_dir = _STRIPPED_PACKAGES_DIR
     except cros_build_lib.RunCommandError: