fix(data/pda): correct battery_mah for Palm Pre 2 per Wikipedia

Author: Seungpyo1007

data/pda/palm/2011/palm-pre-2/palm-pre-2.json

@@ -5,11 +5,12 @@
   "soc": "texas-instruments-omap-3630",
   "release_date": "2011-02-17",
   "ram_gb": 1,
-  "battery_mah": 1500,
+  "battery_mah": 1150,
   "weight_g": 145.0,
   "os": "Feature phone",
   "verified": true,
   "source_urls": [
+    "https://en.wikipedia.org/wiki/Palm_Pre_2",
     "https://phonedb.net/index.php?m=device&id=2647"
   ],
   "storage_options_gb": [