Update podspec

fmdb.podspec

@@ -11,7 +11,7 @@ Pod::Spec.new do |s|
   s.default_subspec = 'standard'
 
   s.subspec 'common' do |ss|
-    ss.source_files = 'src/FM*.{h,m}'
+    ss.source_files = 'src/fmdb/FM*.{h,m}'
     ss.exclude_files = 'src/fmdb.m'
   end