vpn-manager: Update gyp file to use src/platform2/common-mk

We are moving the packages built by platform2's ebuild into src/platform2.
We need packages to use src/platform2/common-mk instead of
src/platform/common-mk.

BUG=chromium:378554
TEST=emerge-daisy platform2
TEST=trybot run on daisy, link, mario and duck

CQ-DEPEND=CL:201938

Change-Id: I4121da0c18dcc7d85ccbd63001305789ac3032eb
Reviewed-on: https://chromium-review.googlesource.com/201992
Tested-by: Bertrand Simonnet <bsimonnet@chromium.org>
Reviewed-by: Ben Chan <benchan@chromium.org>
Commit-Queue: Bertrand Simonnet <bsimonnet@chromium.org>
diff --git a/vpn-manager.gyp b/vpn-manager.gyp
index b4eb148..659cd89 100644
--- a/vpn-manager.gyp
+++ b/vpn-manager.gyp
@@ -49,7 +49,7 @@
           'target_name': 'daemon_test',
           'type': 'executable',
           'dependencies': ['libl2tpipsec_vpn'],
-          'includes': ['../common-mk/common_test.gypi'],
+          'includes': ['../../platform2/common-mk/common_test.gypi'],
           'sources': [
             'daemon_test.cc',
           ]
@@ -58,7 +58,7 @@
           'target_name': 'ipsec_manager_test',
           'type': 'executable',
           'dependencies': ['libl2tpipsec_vpn'],
-          'includes': ['../common-mk/common_test.gypi'],
+          'includes': ['../../platform2/common-mk/common_test.gypi'],
           'sources': [
             'ipsec_manager_test.cc',
           ]
@@ -67,7 +67,7 @@
           'target_name': 'l2tp_manager_test',
           'type': 'executable',
           'dependencies': ['libl2tpipsec_vpn'],
-          'includes': ['../common-mk/common_test.gypi'],
+          'includes': ['../../platform2/common-mk/common_test.gypi'],
           'sources': [
             'l2tp_manager_test.cc',
           ]
@@ -76,7 +76,7 @@
           'target_name': 'service_manager_test',
           'type': 'executable',
           'dependencies': ['libl2tpipsec_vpn'],
-          'includes': ['../common-mk/common_test.gypi'],
+          'includes': ['../../platform2/common-mk/common_test.gypi'],
           'sources': [
             'service_manager_test.cc',
           ]