npcm7xx: kernel: replace linux-obmc with linux-nuvoton

The linux-obmc recipe has been removed and BSPs are expected to provide
their own Linux recipes now. This updates the Nuvoton BSP to include its
own Linux recipe so it can build successfully again.

Change-Id: I61e0cf0745be6ae4e282b32abf36aad4c5f4b860
Signed-off-by: Benjamin Fair <benjaminfair@google.com>
diff --git a/meta-npcm7xx/recipes-kernel/linux/linux-nuvoton_git.bb b/meta-npcm7xx/recipes-kernel/linux/linux-nuvoton_git.bb
new file mode 100644
index 0000000..91d7437
--- /dev/null
+++ b/meta-npcm7xx/recipes-kernel/linux/linux-nuvoton_git.bb
@@ -0,0 +1,6 @@
+KBRANCH ?= "dev-4.17"
+LINUX_VERSION ?= "4.17.4"
+
+SRCREV="8fb9a0714f8ff91756a9746707c4f884b3745a40"
+
+require linux-nuvoton.inc