Make the sdcardd domain enforcing.

Change-Id: I8830c4b26f3fd9e8356e090ede1d7b4eaa6cb733
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>

sdcardd.te

 type sdcardd, domain;
-permissive_or_unconfined(sdcardd)
 type sdcardd_exec, exec_type, file_type;
 
 init_daemon_domain(sdcardd)