kernel: Move to Linux v5.3.6-openpower1

This adds a backported patch to fix a driver crash:

 scsi: lpfc: Fix oops when fewer hdwqs than cpus

PowerPC related changes:

 libnvdimm/altmap: Track namespace boundaries in altmap
 powerpc/mm: Fixup tlbie vs mtpidr/mtlpidr ordering issue on POWER9
 powerpc/mm: Fix an Oops in kasan_mmu_init()
 powerpc/mm: Add a helper to select PAGE_KERNEL_RO or PAGE_READONLY
 powerpc/book3s64/radix: Rename CPU_FTR_P9_TLBIE_BUG feature flag
 powerpc/book3s64/mm: Don't do tlbie fixup for some hardware revisions
 powerpc/kasan: Fix shadow area set up for modules.
 powerpc/kasan: Fix parallel loading of modules.
 powerpc/powernv/ioda: Fix race in TCE level allocation
 powerpc/powernv: Restrict OPAL symbol map to only be readable by root
 powerpc/mce: Schedule work from irq_work
 powerpc/mce: Fix MCE handling for huge pages
 powerpc/xive: Implement get_irqchip_state method for XIVE to fix shutdown race

Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/openpower/configs/palmetto_defconfig b/openpower/configs/palmetto_defconfig
index f7ec045..a1ffba6 100644
--- a/openpower/configs/palmetto_defconfig
+++ b/openpower/configs/palmetto_defconfig
@@ -14,7 +14,7 @@
 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="5.3.5"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.3.6"
 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"