cppzmq: use cmake to install the package

This way also the required cmake configs are installed so other
packages can find it.

It seems also cleaner to use the upstream mechanism than to have our own
install script.

Signed-off-by: Pascal Bach <pascal.bach@siemens.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-connectivity/zeromq/cppzmq_git.bb

@@ -11,10 +11,7 @@ SRC_URI = "git://github.com/zeromq/cppzmq.git"
 
 S = "${WORKDIR}/git"
 
-do_install () {
-        install -d ${D}/usr/include
-        install -m 0755 ${S}/zmq.hpp ${D}/usr/include/
-}
+inherit cmake
 
 PACKAGES = "${PN}-dev"