lsm: cleanup the debug and console output in lsm_init.c

Move away from an init specific init_debug() macro to a more general
lsm_pr()/lsm_pr_cont()/lsm_pr_dbg() set of macros that are available
both before and after init.  In the process we do a number of minor
changes to improve the LSM initialization output and cleanup the code
somewhat.

Reviewed-by: Casey Schaufler <casey@schaufler-ca.com>
Reviewed-by: John Johansen <john.johhansen@canonical.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>

security/security.c

@@ -73,6 +73,8 @@ const char *const lockdown_reasons[LOCKDOWN_CONFIDENTIALITY_MAX + 1] = {
 	[LOCKDOWN_CONFIDENTIALITY_MAX] = "confidentiality",
 };
 
+bool lsm_debug __ro_after_init;
+
 unsigned int lsm_active_cnt __ro_after_init;
 const struct lsm_id *lsm_idlist[MAX_LSM_COUNT];