fix pytrack

Author: peter-pycom

shields/pytrack_1.py

@@ -18,7 +18,7 @@
 from machine import RTC
 from machine import SD
 from L76GNSS import L76GNSS
-from pytrack import Pytrack
+from pycoproc_1 import Pycoproc
 
 time.sleep(2)
 gc.enable()
@@ -31,7 +31,7 @@
 utime.timezone(7200)
 print('Adjusted from UTC to EST timezone', utime.localtime(), '\n')
 
-py = Pytrack()
+py = Pycoproc(Pycoproc.PYTRACK)
 l76 = L76GNSS(py, timeout=30)
 
 # sd = SD()