tests/pthread_condition_variable: increase timeout

Otherwise it raises a timeout on slow boards. It takes around 2 minutes
on nrf51 based boards (e.g microbit)

tests/pthread_condition_variable/tests/01-run.py

@@ -4,6 +4,12 @@ import sys
 from testrunner import run
 
 
+# This test can take some time to complete when testing on hardware (e.g
+# on samr21-xpro) and the default timeout (10s) is not enough.
+# For example, it takes about 2 minutes to complete on a microbit.
+TIMEOUT = 150
+
+
 def testfunc(child):
     child.expect('START')
     child.expect('condition fulfilled.')
@@ -11,6 +17,4 @@ def testfunc(child):
 
 
 if __name__ == "__main__":
-    # This test can take some time to complete when testing on hardware (e.g
-    # on samr21-xpro) and the default timeout (10s) is not enough.
-    sys.exit(run(testfunc, timeout=60))
+    sys.exit(run(testfunc, timeout=TIMEOUT))