Add libgit2, libssh2 from meta-oe for rust

(From OE-Core rev: a6e49314f64b65b3a165d33ae581b6761ded0e82)

Signed-off-by: Randy MacLeod <Randy.MacLeod@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-support/libgit2/libgit2_0.27.8.bb

@@ -0,0 +1,25 @@
+SUMMARY = "the Git linkable library"
+HOMEPAGE = "http://libgit2.github.com/"
+LICENSE = "GPL-2.0-with-GCC-exception & MIT"
+LIC_FILES_CHKSUM = "file://COPYING;md5=3f2cd5d3cccd71d62066ba619614592b"
+
+DEPENDS = "curl openssl zlib libssh2 libgcrypt"
+
+SRC_URI = "git://github.com/libgit2/libgit2.git;branch=maint/v0.27"
+#v0.27.8
+SRCREV = "2882803ca2b2cdedd069746422155a23fdd002b2"
+
+S = "${WORKDIR}/git"
+
+inherit cmake
+
+EXTRA_OECMAKE = "\
+    -DTHREADSAFE=ON \
+    -DBUILD_CLAR=OFF \
+    -DSHA1_TYPE="builtin" \
+    -DCMAKE_BUILD_TYPE=RelWithDebInfo \
+    -DBUILD_EXAMPLES=OFF \
+    -DLIB_INSTALL_DIR=${libdir} \
+"
+
+BBCLASSEXTEND = "native"