Convert host-ipmid -> libipmid

phosphor-host-ipmid now exposes a library along with headers for
interfacing with the ipmi daemon. Compile and link against the new
library.

Change-Id: I4b4ebed47aad96d6a73dec2f8cda52569e8c2e9e
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/Makefile.am b/Makefile.am
index 04e71f7..4be2117 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -6,6 +6,8 @@
 libi2ccmds_la_SOURCES = i2c.cpp
 
 libi2ccmds_la_LDFLAGS = \
+	$(LIBIPMID_LIBS)
 	-version-info 0:0:0 -shared
 
-libi2ccmds_la_CXXFLAGS = -flto
+libi2ccmds_la_CXXFLAGS = -flto \
+	$(LIBIPMID_CFLAGS)