Add pkg-config definition for libmctp

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Change-Id: I276caf181d398d1b4a217f2ff59e5e7d31b47b6a
diff --git a/libmctp.pc.in b/libmctp.pc.in
new file mode 100644
index 0000000..e4676a3
--- /dev/null
+++ b/libmctp.pc.in
@@ -0,0 +1,10 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libmctp
+Description: MCTP protocol implementation
+Version: @VERSION@
+Libs: -L${libdir} -lmctp
+Cflags: -I${includedir}