[autotest] Run performance suite on dedicated performance pool

pool:performance is dedicated to run performance test. For a given board, all
duts in pool:performance should have the same SKU.

Also fixed a minor bug in suite_scheduler.ini

BUG=None
TEST=None

Change-Id: I9f920563939adbd577d9056f45c460718b6000d9
Reviewed-on: https://chromium-review.googlesource.com/244120
Commit-Queue: Dan Shi <dshi@chromium.org>
Trybot-Ready: Dan Shi <dshi@chromium.org>
Tested-by: Dan Shi <dshi@chromium.org>
Reviewed-by: Bindu Mahadev <bmahadev@chromium.org>
Reviewed-by: Keith Haddow <haddowk@chromium.org>
diff --git a/suite_scheduler.ini b/suite_scheduler.ini
index a6f4b71..d635ce7 100644
--- a/suite_scheduler.ini
+++ b/suite_scheduler.ini
@@ -261,7 +261,7 @@
 
 [WiFi_MatFuncDaily_intel7265]
 run_on: nightly
-suite: wifi_matfunc_intel7265]
+suite: wifi_matfunc_intel7265
 branch_specs: >=tot-1
 pool: wificell_preflight
 
@@ -701,5 +701,5 @@
 run_on: nightly
 suite: performance
 branch_specs: >=tot-2
-pool: suites
+pool: performance
 file_bugs: True