kernel: Move to Linux v5.4.132-openpower1

PowerPC related fixes since 5.4.107:

 powerpc: Offline CPU in stop_this_cpu()
 powerpc/stacktrace: Fix spurious "stale" traces in raise_backtrace_ipi()
 powerpc/64s: Fix crashes when toggling entry flush barrier
 powerpc/64s: Fix crashes when toggling stf barrier
 powerpc/iommu: Annotate nested lock for lockdep
 powerpc/smp: Set numa node before updating mask
 powerpc/xive: Fix xmon command "dxi"
 powerpc/perf: Fix PMU constraint check for EBB events
 powerpc/64s: Fix pte update for kernel memory on radix
 powerpc: Fix HAVE_HARDLOCKUP_DETECTOR_ARCH build configuration
 powerpc/prom: Mark identical_pvr_fixup as __init
 powerpc/fadump: Mark fadump_calculate_reserve_size as __init
 powerpc: fix EDEADLOCK redefinition error in uapi/asm/errno.h
 powerpc/eeh: Fix EEH handling for hugepages in ioremap space.
 powerpc: Force inlining of cpu_has_feature() to avoid build failure

Additionally, two of the patches that were carried have been merged into
the upstream stable tree:

 x86/efi: move common keyring handler functions to new file
 certs: Add EFI_CERT_X509_GUID support for dbx entries

Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/openpower/configs/nicole_defconfig b/openpower/configs/nicole_defconfig
index 90aa06d..be23db5 100644
--- a/openpower/configs/nicole_defconfig
+++ b/openpower/configs/nicole_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="5.4.107"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.4.132"
 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"