Add our Chrome OS Type GUIDs to the list that gpt recognizes.

sys_gpt.h

Index: sys_gpt.h
diff --git a/sys_gpt.h b/sys_gpt.h
index 0820e10d472e7ce70129fc9c7a0ff198072aece9..35bbd954a1e68fe09aa236cae87d6770426b6a1d 100644
--- a/sys_gpt.h
+++ b/sys_gpt.h
@@ -131,4 +131,12 @@ struct gpt_ent {
 #define	GPT_ENT_TYPE_APPLE_HFS		\
 	{0x48465300,0x0000,0x11aa,0xaa,0x11,{0x00,0x30,0x65,0x43,0xec,0xac}}
 
+#define	GPT_ENT_TYPE_CHROMEOS_KERNEL	\
+	{0xfe3a2a5d,0x4f32,0x41a7,0xb7,0x25,{0xac,0xcc,0x32,0x85,0xa3,0x09}}
+#define	GPT_ENT_TYPE_CHROMEOS_ROOTFS	\
+	{0x3cb8e202,0x3b7e,0x47dd,0x8a,0x3c,{0x7f,0xf2,0xa1,0x3c,0xfc,0xec}}
+#define	GPT_ENT_TYPE_CHROMEOS_RESERVED	\
+	{0x2e0a753d,0x9e48,0x43b0,0x83,0x37,{0xb1,0x51,0x92,0xcb,0x1b,0x5e}}
+
+
 #endif /* _SYS_GPT_H_ */