ibmasm: convert to new timestamp accessors

Convert to using the new inode timestamp accessor functions.

Signed-off-by: Jeff Layton <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Christian Brauner <[e-mail]>

drivers/misc/ibmasm/ibmasmfs.c

···
 	if (ret) {
 		ret->i_ino = get_next_ino();
 		ret->i_mode = mode;
-		ret->i_atime = ret->i_mtime = inode_set_ctime_current(ret);
+		simple_inode_init_ts(ret);
 	}
 	return ret;
 }