Allow sdcardd to write to sdcard directory and file.

Should resolve b/13060688 - emulator writes to /storage/sdcard failing.

Change-Id: I9f00d9dfcd1c4f84c2320628257beca71abf170b
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>

sdcardd.te

@@ -9,6 +9,9 @@ allow sdcardd rootfs:dir mounton;
 allow sdcardd sdcard_type:filesystem mount;
 allow sdcardd self:capability { setuid setgid dac_override sys_admin sys_resource };
 
+allow sdcardd sdcard_type:dir create_dir_perms;
+allow sdcardd sdcard_type:file create_file_perms;
+
 type_transition sdcardd system_data_file:{ dir file } media_rw_data_file;
 allow sdcardd media_rw_data_file:dir create_dir_perms;
 allow sdcardd media_rw_data_file:file create_file_perms;