dyndbg: fix for SOH in logging messages

commit af7f215 was done against master, and clashed with structured
logging's change of KERN_LEVEL to SOH.

Bisected and fixed by Markus Trippelsdorf.

Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jason Baron <jbaron@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/base/core.c

@@ -1912,8 +1912,8 @@ int __dev_printk(const char *level, const struct device *dev,
 				    "DEVICE=+%s:%s", subsys, dev_name(dev));
 	}
 skip:
-	if (level[3])
-		level_extra = &level[3]; /* skip past "<L>" */
+	if (level[2])
+		level_extra = &level[2]; /* skip past KERN_SOH "L" */
 
 	return printk_emit(0, level[1] - '0',
 			   dictlen ? dict : NULL, dictlen,