sh: Add L-BOX RE2 to mach-types.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/tools/mach-types

@@ -34,3 +34,4 @@ R7785RP			SH_R7785RP
 TITAN			SH_TITAN
 SHMIN			SH_SHMIN
 7710VOIPGW		SH_7710VOIPGW
+LBOXRE2			SH_LBOX_RE2