faft: Refine the SUITE tags of FAFTs

This CL creates faft_bios for all BIOS FAFTs. faft_bios tests are categorized
into 2 groups: faft_normal and faft_dev.

When running all BIOS FAFTs, we suggest to run it using 2 suites, like:
 $ run_remote_teshs.sh ... suite:faft_normal suite:faft_dev
instead of:
 $ run_remote_teshs.sh ... suite:faft_bios

As run_remote_test.sh picks tests in a random basic, using 2 suites helps
all tests under the same mode grouped together. It save time to switching
between normal mode and dev mode.

It also makes all stress tests only tagged in faft_stress.

BUG=chromium-os:32859
TEST=None, trivial, only tags changed.

Change-Id: Idfa29f3c1a321647a2f462167a142d191967f73e
Reviewed-on: https://gerrit.chromium.org/gerrit/37112
Reviewed-by: Vic Yang <victoryang@chromium.org>
Commit-Ready: Tom Wai-Hong Tam <waihong@chromium.org>
Tested-by: Tom Wai-Hong Tam <waihong@chromium.org>
diff --git a/server/site_tests/firmware_CorruptBothFwBodyAB/control.dev b/server/site_tests/firmware_CorruptBothFwBodyAB/control.dev
index c3444d2..5aa8ce5 100644
--- a/server/site_tests/firmware_CorruptBothFwBodyAB/control.dev
+++ b/server/site_tests/firmware_CorruptBothFwBodyAB/control.dev
@@ -8,7 +8,7 @@
 NAME = "firmware_CorruptFwBodyAB"
 PURPOSE = "Servo based both firmware body A and B corruption test"
 CRITERIA = "This test will fail if firmware does not enter recovery mode"
-SUITE = "faft,faft_dev,faft_lv3"
+SUITE = "faft,faft_bios,faft_dev,faft_lv3"
 TIME = "LONG"
 TEST_CATEGORY = "Functional"
 TEST_CLASS = "firmware"