include sqlite3_static_libs in linker flags

gyp/mbgl-core.gypi

@@ -85,6 +85,7 @@
               '<(standalone_lib)',
               '<@(uv_static_libs)',
               '<@(curl_static_libs)',
+              '<@(sqlite3_static_libs)',
               '<(core_lib)'
           ],
         }

macosx/mapboxgl-app.gyp

@@ -39,6 +39,7 @@
         'ldflags': [
           '<@(uv_ldflags)',
           '<@(uv_static_libs)',
+          '<@(sqlite3_static_libs)',
           '<@(sqlite3_ldflags)',
           '<@(glfw3_static_libs)',
           '<@(glfw3_ldflags)',
@@ -61,4 +62,4 @@
       ]
     }
   ]
-}
+}

test/test.gyp

@@ -7,6 +7,7 @@
   'variables' : {
     'ldflags': [
       '<@(uv_ldflags)',
+      '<@(sqlite3_static_libs)',
       '<@(sqlite3_ldflags)',
       '<@(curl_ldflags)',
       '<@(png_ldflags)',