sepolicy: update emsvr policy

init_daemon_domain(em_svr)

allow em_svr gsensor_device:chr_file { read ioctl open };

allow em_svr gyroscope_device:chr_file { read ioctl open };

allow em_svr nvdata_file:dir { write read open add_name search };

allow em_svr nvdata_file:file { write getattr setattr read create open };

allow em_svr gsensor_device:chr_file r_file_perms;

allow em_svr gyroscope_device:chr_file r_file_perms;

allow em_svr nvdata_file:dir rw_dir_perms;

allow em_svr nvdata_file:file rw_file_perms;

allow em_svr nvdata_file:lnk_file r_file_perms;