driver: fix creating of entries in proc-fs for linux 3.10
driver: proc: use seq_show function for basic added proc entries
driver: proc: missing include of linux/seq_file.h
driver: debug proc: fix return value for show callback
driver: proc_dtrace_security_show(): drop unsed variables

Unstable patch
driver: fix file_operations.open callbacks
driver: proc_dtrace_stats_show(): drop undefined variable usage
driver: proc_dtrace_stats_show(): drop deprecated variables

Unstable
driver: there is no seq_nprintf() function, replace by seq_printf()
driver: implement proc_dtrace_trace_write_proc() callback

Possible unstable patch
driver: implement proc_dtrace_trace_show() callback

Possible incorrect behaviour
driver: add {llseek,release} default callbacks
driver: use single_open() instead of seq_open() for proc/dtrace/debug
driver: use single_open() instead seq_open() for /proc/dtrace/security
driver: use single_open() instead of seq_open() for /proc/dtrace/stats
driver: use single_open() instead of seq_open() for /proc/dtrace/trace