Add init support for dm-verity logging mode

Add a built-in command for loading verity state. If dm-verity
will be started in logging mode, trigger verity-logging.

Needs changes from
  Ibb82953594d234f81ad21c40f524190b88e4ac8f

Change-Id: I5af4918f2f14fdd4d07f51c55837e08111fd3748
diff --git a/init/keywords.h b/init/keywords.h
index a8f29d1..60931f1 100644
--- a/init/keywords.h
+++ b/init/keywords.h
@@ -41,6 +41,7 @@
 int do_loglevel(int nargs, char **args);
 int do_load_persist_props(int nargs, char **args);
 int do_load_all_props(int nargs, char **args);
+int do_verity_load_state(int nargs, char **args);
 int do_wait(int nargs, char **args);
 #define __MAKE_KEYWORD_ENUM__
 #define KEYWORD(symbol, flags, nargs, func) K_##symbol,
@@ -97,6 +98,7 @@
     KEYWORD(symlink,     COMMAND, 1, do_symlink)
     KEYWORD(sysclktz,    COMMAND, 1, do_sysclktz)
     KEYWORD(user,        OPTION,  0, 0)
+    KEYWORD(verity_load_state,      COMMAND, 0, do_verity_load_state)
     KEYWORD(wait,        COMMAND, 1, do_wait)
     KEYWORD(write,       COMMAND, 2, do_write)
     KEYWORD(copy,        COMMAND, 2, do_copy)