[autotest] Uprev CTS P version to 9.0_r4

TEST=None
BUG=b:68778082

Change-Id: Ie8a3df6ac3f1b56724b43dedbce9124371066ffc
Reviewed-on: https://chromium-review.googlesource.com/1370206
Commit-Ready: Keith Haddow <haddowk@chromium.org>
Tested-by: Keith Haddow <haddowk@chromium.org>
Reviewed-by: Ilja H. Friedel <ihf@chromium.org>
Reviewed-by: Kazuhiro Inaba <kinaba@chromium.org>
diff --git a/server/site_tests/cheets_CTS_P/control.x86.CtsIncidentHostTestCases b/server/site_tests/cheets_CTS_P/control.x86.CtsIncidentHostTestCases
index bfbdeac..a13d3ab 100644
--- a/server/site_tests/cheets_CTS_P/control.x86.CtsIncidentHostTestCases
+++ b/server/site_tests/cheets_CTS_P/control.x86.CtsIncidentHostTestCases
@@ -20,7 +20,7 @@
         'cheets_CTS_P',
         hosts=host_list,
         iterations=1,
-        max_retry=3,
+        max_retry=12,
         needs_push_media=False,
         tag='x86.CtsIncidentHostTestCases',
         test_name='cheets_CTS_P.x86.CtsIncidentHostTestCases',