[project][qemu] Increase adb wait-for-device timeout to 5 min

Current adb timeout of 2 minutes is sometimes not enough on slow build
servers. Also increase the tieout on the down path.

Bug: 162097382
Change-Id: I39d77493d65f3dc49981a7d61206246b30c339f4
diff --git a/project/qemu/qemu.py b/project/qemu/qemu.py
index 3008900..03c1d77 100644
--- a/project/qemu/qemu.py
+++ b/project/qemu/qemu.py
@@ -626,7 +626,7 @@
         sock.close()
         self.check_adb(["connect", "localhost:%d" % port])
         self.scan_transport(port)
-        self.check_adb(["wait-for-device"], timeout=120)
+        self.check_adb(["wait-for-device"], timeout=300)
         self.adb_root()
 
         # Files put onto the data partition in the Android build will not
@@ -641,7 +641,7 @@
         self.check_adb(["disconnect", "localhost:%d" % port])
 
         # Wait until QEMU's forward has expired
-        CONNECT_MAX_TRIES = 120
+        CONNECT_MAX_TRIES = 300
         connect_tries = 0
         while True:
             try: