Configure channel 149 & 36 as p2p preferred channels.

Bug: 194132777
Test: connect STA to 2.4GHz and verified that p2p is able to come up in
5GHz DBS mode.

Change-Id: I07fb6b586b89f66fd105673d47b2d2367c30e487
Merged-In: I07fb6b586b89f66fd105673d47b2d2367c30e487
(cherry picked from commit 20c24cfd61926f128ca88f1ccf637663fa6575df)
diff --git a/wifi/p2p_supplicant.conf b/wifi/p2p_supplicant.conf
index 2f0bc1b..4ec8453 100644
--- a/wifi/p2p_supplicant.conf
+++ b/wifi/p2p_supplicant.conf
@@ -7,3 +7,4 @@
 p2p_add_cli_chan=1
 disable_scan_offload=1
 p2p_go_vht=1
+p2p_pref_chan=124:149, 115:36