use word size instead of cpu

MediaBrowser.Server.Mono/Imazen.WebP.dll.config

@@ -1,5 +1,5 @@
 <configuration>
-  <dllmap dll="libwebp" target="./libwebp/linux/lib/libwebp.so" os="linux" cpu="x86"/>
-  <dllmap dll="libwebp" target="./libwebp/linux/lib64/libwebp.so" os="linux" cpu="x86-64"/>
+  <dllmap dll="libwebp" target="./libwebp/linux/lib/libwebp.so" os="linux" wordsize="32"/>
+  <dllmap dll="libwebp" target="./libwebp/linux/lib64/libwebp.so" os="linux" wordsize="64"/>
   <dllmap dll="libwebp" target="./libwebp/mac/libwebp.dylib" os="osx"/>
 </configuration>

MediaBrowser.Server.Mono/System.Data.SQLite.dll.config

@@ -1,5 +1,5 @@
 <configuration>
-  <dllmap dll="sqlite3" target="./sqlite3/linux/lib/libsqlite3.so.0.8.6" os="linux" cpu="x86"/>
-  <dllmap dll="sqlite3" target="./sqlite3/linux/lib64/libsqlite3.so.0.8.6" os="linux" cpu="x86-64"/>
+  <dllmap dll="sqlite3" target="./sqlite3/linux/lib/libsqlite3.so.0.8.6" os="linux" wordsize="32"/>
+  <dllmap dll="sqlite3" target="./sqlite3/linux/lib64/libsqlite3.so.0.8.6" os="linux" wordsize="64"/>
   <dllmap dll="sqlite3" target="./sqlite3/mac/libsqlite3.0.dylib" os="osx"/>
 </configuration>