FAFT: Categorize FAFT tests into faft_normal, faft_dev, and faft_ec

To speed-up running FAFT, we should run faft_normal, faft_dev, and faft_ec
tests separately, saving time to switch mode. So all non-EC FAFT should be
categorized into these 3 groups. This CL add the tests which miss this field.

BUG=chromium-os:38141
TEST=None, trivial change

Change-Id: I9fa0335dbc53a874d1f08a16b92b20447d41d777
Reviewed-on: https://gerrit.chromium.org/gerrit/41915
Commit-Queue: Tom Wai-Hong Tam <waihong@chromium.org>
Reviewed-by: Tom Wai-Hong Tam <waihong@chromium.org>
Tested-by: Tom Wai-Hong Tam <waihong@chromium.org>
diff --git a/server/site_tests/firmware_ECWriteProtect/control.dev b/server/site_tests/firmware_ECWriteProtect/control.dev
index 93984d4..f2888d9 100644
--- a/server/site_tests/firmware_ECWriteProtect/control.dev
+++ b/server/site_tests/firmware_ECWriteProtect/control.dev
@@ -8,6 +8,7 @@
 NAME = "firmware_ECWriteProtect"
 PURPOSE = "Servo based EC write protect test"
 CRITERIA = "This test will fail if EC write protect misbehaved"
+SUITE = "faft,faft_ec"
 TIME = "SHORT"
 TEST_CATEGORY = "Functional"
 TEST_CLASS = "firmware"