kernel: Move to Linux v5.2.17-openpower1

PowerPC fixes:

 powerpc/mm/radix: Use the right page size for vmemmap mapping
 powerpc: Add barrier_nospec to raw_copy_in_user()
 powerpc/tm: Fix restoring FP/VMX facility incorrectly on interrupts
 powerpc/tm: Fix FP/VMX unavailable exceptions inside a transaction

Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/openpower/configs/p9dsu_defconfig b/openpower/configs/p9dsu_defconfig
index 9c08644..3e5cb96 100644
--- a/openpower/configs/p9dsu_defconfig
+++ b/openpower/configs/p9dsu_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="5.2.11"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.2.17"
 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"