Suite scheduler: run pool:wificell tests weekly instead of nightly on stable.

To reduce the nightly load and avoid so many aborted tests, run the wifi and
bluetooth tests weekly instead of nightly for stable builds (currently M37).

BUG=None
TEST=None
Change-Id: I7854f55c8d984e03c018754773f0ec03e1f20ac3
Reviewed-on: https://chromium-review.googlesource.com/217145
Reviewed-by: Kris Rambish <krisr@chromium.org>
Tested-by: Katherine Threlkeld <kathrelkeld@chromium.org>
Commit-Queue: Katherine Threlkeld <kathrelkeld@chromium.org>
diff --git a/suite_scheduler.ini b/suite_scheduler.ini
index 0f718d1..0ac5212 100644
--- a/suite_scheduler.ini
+++ b/suite_scheduler.ini
@@ -284,7 +284,7 @@
 [WiFi_MatFuncDaily]
 run_on: nightly
 suite: wifi_matfunc
-branch_specs: >=R29
+branch_specs: >=R38
 pool: wificell
 
 [WiFi_MatFuncDaily_Preflight]
@@ -293,10 +293,22 @@
 branch_specs: >=R36
 pool: wificell_preflight
 
+[WiFi_MatFunc_Weekly]
+run_on: weekly
+suite: wifi_matfunc
+branch_specs: <=R37
+pool: wificell
+
 [WiFi_Perf]
 run_on: nightly
 suite: wifi_perf
-branch_specs: >=R34
+branch_specs: >=R38
+pool: wificell
+
+[WiFi_Perf_Weekly]
+run_on: weekly
+suite: wifi_perf
+branch_specs: <=R37
 pool: wificell
 
 [WiFi_Attenuated_Performance]
@@ -320,13 +332,25 @@
 [Bluetooth_Qualification]
 run_on: nightly
 suite: bluetooth_qualification
-branch_specs: >=R34
+branch_specs: >=R38
+pool: wificell
+
+[Bluetooth_Qualification_Weekly]
+run_on: weekly
+suite: bluetooth_qualification
+branch_specs: <=R37
 pool: wificell
 
 [Bluetooth_Sanity]
 run_on: nightly
 suite: bluetooth_sanity
-branch_specs: >=R34
+branch_specs: >=R38
+pool: wificell
+
+[Bluetooth_Sanity_Weekly]
+run_on: weekly
+suite: bluetooth_sanity
+branch_specs: <=R37
 pool: wificell
 
 [NightlyStress]