Replace platform/external/bluetooth/bluedroid with platform/system/bt

Change-Id: I60b22ee9c7493bab0998f4f9541120a5cc80ff98

default.xml

@@ -66,7 +66,6 @@
   <project path="external/apache-xml" name="platform/external/apache-xml" groups="pdk-cw-fs" />
   <project path="external/bison" name="platform/external/bison" groups="pdk" />
   <project path="external/blktrace" name="platform/external/blktrace" groups="pdk-cw-fs" />
-  <project path="external/bluetooth/bluedroid" name="platform/external/bluetooth/bluedroid" groups="pdk" />
   <project path="external/bouncycastle" name="platform/external/bouncycastle" groups="pdk" />
   <project path="external/bsdiff" name="platform/external/bsdiff" groups="pdk" />
   <project path="external/bzip2" name="platform/external/bzip2" groups="pdk" />
@@ -474,6 +473,7 @@
   <project path="prebuilts/sdk" name="platform/prebuilts/sdk" groups="pdk,tradefed" />
   <project path="prebuilts/tools" name="platform/prebuilts/tools" groups="pdk,tools" />
   <project path="sdk" name="platform/sdk" groups="pdk-cw-fs" />
+  <project path="system/bt" name="platform/system/bt" />
   <project path="system/core" name="platform/system/core" groups="pdk" />
   <project path="system/extras" name="platform/system/extras" groups="pdk" />
   <project path="system/keyguard" name="platform/system/keyguard" />