Add external/mmc-utils to manifest

BUG: 25155975
Change-Id: I31f5f98022ec831129aa6ea44b3de476e2d6ed00
Signed-off-by: Mohamad Ayyash <mkayyash@google.com>

default.xml

@@ -218,6 +218,7 @@
   <project path="external/messageformat" name="platform/external/messageformat" groups="pdk-cw-fs,pdk-fs" />
   <project path="external/minijail" name="platform/external/minijail" />
   <project path="external/mksh" name="platform/external/mksh" groups="pdk" />
+  <project path="external/mmc-utils" name="platform/external/mmc-utils" groups="pdk-cw-fs,pdk-fs" />
   <project path="external/mockftpserver" name="platform/external/mockftpserver" groups="pdk-fs" />
   <project path="external/mockito" name="platform/external/mockito" groups="pdk-cw-fs,pdk-fs" />
   <project path="external/mockwebserver" name="platform/external/mockwebserver" groups="pdk-cw-fs,pdk-fs" />