Bump skiboot to latest level

Changes since commit f767049:

Klaus Heinrich Kiwi (3):
      Rename 'rainier' to 'rainier-2s2u'
      Revert "Merge pull request #40 from klausk/rename_rainier"
      Add 'rainier-2s2u' as a valid SYSTEM_TYPE

Pratik Rajesh Sampat (1):
      libpore: P10 stop-api support

Ryan P Grimm (3):
      Merge pull request #39 from svaidyan/p10-stop-api
      Merge pull request #40 from klausk/rename_rainier
      Merge pull request #41 from klausk/rename_rainier

Vaidyanathan Srinivasan (1):
      xive2: Add NCU_SPEC_BAR to stop engine for restore

Signed-off-by: Klaus Heinrich Kiwi <klaus@linux.vnet.ibm.com>

----------------------------------------------------------------
 hw/slw.c                                  |   38 ++++-
 hw/xive2.c                                |   31 ++++-
 include/p10_stop_api.H                    |  232 +++++++++++++++++++++++++++++++
 libpore/Makefile.inc                      |    2 +-
 libpore/p10_cpu_reg_restore_instruction.H |   88 ++++++++++++
 libpore/p10_hcd_header_defs.H             |  152 ++++++++++++++++++++
 libpore/p10_hcd_memmap_base.H             |  463 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 libpore/p10_hcd_memmap_homer.H            |   94 +++++++++++++
 libpore/p10_hcd_memmap_occ_sram.H         |  174 +++++++++++++++++++++++
 libpore/p10_hcode_image_defines.H         |  462 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 libpore/p10_stop_api.C                    | 1816 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 libpore/p10_stop_api.H                    |  232 +++++++++++++++++++++++++++++++
 libpore/p10_stop_data_struct.H            |  162 ++++++++++++++++++++++
 libpore/p10_stop_util.C                   |  191 +++++++++++++++++++++++++
 libpore/p10_stop_util.H                   |  123 ++++++++++++++++
 platforms/astbmc/rainier.c                |    3 +-
 16 files changed, 4252 insertions(+), 11 deletions(-)
 create mode 100755 include/p10_stop_api.H
 create mode 100755 libpore/p10_cpu_reg_restore_instruction.H
 create mode 100644 libpore/p10_hcd_header_defs.H
 create mode 100644 libpore/p10_hcd_memmap_base.H
 create mode 100644 libpore/p10_hcd_memmap_homer.H
 create mode 100644 libpore/p10_hcd_memmap_occ_sram.H
 create mode 100644 libpore/p10_hcode_image_defines.H
 create mode 100755 libpore/p10_stop_api.C
 create mode 100755 libpore/p10_stop_api.H
 create mode 100755 libpore/p10_stop_data_struct.H
 create mode 100755 libpore/p10_stop_util.C
 create mode 100755 libpore/p10_stop_util.H
diff --git a/openpower/configs/rainier_defconfig b/openpower/configs/rainier_defconfig
index 7d811b4..6a716a9 100644
--- a/openpower/configs/rainier_defconfig
+++ b/openpower/configs/rainier_defconfig
@@ -25,7 +25,7 @@
 BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
 BR2_PACKAGE_SKIBOOT=y
 BR2_SKIBOOT_CUSTOM_VERSION=y
-BR2_SKIBOOT_CUSTOM_VERSION_VALUE="f7670497e64c645621bc52eadbc4d5d632017888"
+BR2_SKIBOOT_CUSTOM_VERSION_VALUE="f9c00a264ab2727c272e4cee602d26107833bd9a"
 BR2_SKIBOOT_CUSTOM_GIT=y
 BR2_SKIBOOT_CUSTOM_REPO_URL="git@github.ibm.com:p10/skiboot.git"
 BR2_PACKAGE_BUSYBOX_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/busybox.fragment"