Add machine-sdk version for ppc64le

Without this the build fails on a ppc64le host.

Tested on a ppc64le machine runnning Ubuntu 20.04.

Submitted upstream: https://lists.openembedded.org/g/openembedded-core/message/148419

Change-Id: I529da27a8500a86a5b329be2ebdf354644f99549
Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/poky/meta/conf/machine-sdk/ppc64le.conf b/poky/meta/conf/machine-sdk/ppc64le.conf
new file mode 100644
index 0000000..0eebc58
--- /dev/null
+++ b/poky/meta/conf/machine-sdk/ppc64le.conf
@@ -0,0 +1,2 @@
+SDK_ARCH = "ppc64le"
+ABIEXTENSION_class-nativesdk = ""