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/linux/0001-xhci-Reset-controller-on-xhci-shutdown.patch b/openpower/linux/0001-xhci-Reset-controller-on-xhci-shutdown.patch
index 02dee24..617d9ba 100644
--- a/openpower/linux/0001-xhci-Reset-controller-on-xhci-shutdown.patch
+++ b/openpower/linux/0001-xhci-Reset-controller-on-xhci-shutdown.patch
@@ -1,7 +1,7 @@
 From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
 From: Brian King <brking@linux.vnet.ibm.com>
 Date: Wed, 25 Oct 2017 10:42:59 +1100
-Subject: [PATCH 01/19] xhci: Reset controller on xhci shutdown
+Subject: [PATCH 01/17] xhci: Reset controller on xhci shutdown
 
 Fixes kexec boot. Without a hard reset, some USB chips will fail to
 initialize in a kexec booted kernel.
@@ -14,10 +14,10 @@
  1 file changed, 3 insertions(+)
 
 diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
-index b5080bc1689e..f9ed0f784a1b 100644
+index a3813c75a3de..92d0334f8b73 100644
 --- a/drivers/usb/host/xhci.c
 +++ b/drivers/usb/host/xhci.c
-@@ -789,6 +789,9 @@ void xhci_shutdown(struct usb_hcd *hcd)
+@@ -793,6 +793,9 @@ void xhci_shutdown(struct usb_hcd *hcd)
  	xhci_dbg_trace(xhci, trace_xhci_dbg_init,
  			"xhci_shutdown completed - status = %x",
  			readl(&xhci->op_regs->status));