kernel: Move to Linux v5.3.16-openpower1

PowerPC releated changes:

 powerpc/bpf: Fix tail call implementation
 powerpc/book3s64: Fix link stack flush on context switch
 powerpc/64s: support nospectre_v2 cmdline option
 powerpc/powernv: Fix CPU idle to be called with IRQs disabled

Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/openpower/configs/habanero_defconfig b/openpower/configs/habanero_defconfig
index 4a7c439..9da0379 100644
--- a/openpower/configs/habanero_defconfig
+++ b/openpower/configs/habanero_defconfig
@@ -16,7 +16,7 @@
 BR2_ROOTFS_POST_BUILD_SCRIPT="../openpower/scripts/fixup-target-var ../openpower/scripts/firmware-whitelist"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.3.7"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.3.16"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_OP_BUILD_PATH)/linux"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/linux/skiroot_defconfig"