meta-ieisystem: Move ipmitool to recipes-ieisystem

ipmitool is a tool and all machines of ieisystem will rely on this
tool, so move ipmitool to recipes-ieisystem.

Signed-off-by: George Liu <liuxiwei@ieisystem.com>
Change-Id: I4afee6289010eeb35364dc45a679eda935c19128
diff --git a/meta-ieisystem/recipes-ieisystem/packagegroups/packagegroup-obmc-apps.bbappend b/meta-ieisystem/recipes-ieisystem/packagegroups/packagegroup-obmc-apps.bbappend
index 62836c4..6460910 100644
--- a/meta-ieisystem/recipes-ieisystem/packagegroups/packagegroup-obmc-apps.bbappend
+++ b/meta-ieisystem/recipes-ieisystem/packagegroups/packagegroup-obmc-apps.bbappend
@@ -2,3 +2,7 @@
         iei-ipmi-oem \
         "
 
+RDEPENDS:${PN}-devtools:append = " \
+        ipmitool \
+        "
+