add DS3231 submodule to bundle

mrmcwethy · tannewt · commit 122b0e7407ea · 2017-08-15T10:26:09.000-07:00
diff --git a/.gitmodules b/.gitmodules
@@ -70,3 +70,6 @@
 [submodule "libraries/drivers/sdcard"]
 	path = libraries/drivers/sdcard
 	url = https://github.com/adafruit/Adafruit_CircuitPython_SD.git
+[submodule "libraries/drivers/ds3231"]
+	path = libraries/drivers/ds3231
+	url = https://github.com/adafruit/Adafruit_CircuitPython_DS3231.git
diff --git a/libraries/drivers/ds3231 b/libraries/drivers/ds3231
@@ -0,0 +1 @@
+Subproject commit 6f9863324cd161a049bffdb97b5776ade9e32365
