Bump to latest p10-skiboot-9d2dc84

The following changes since commit 99ce9ff31dc13da99936754232189ac5db71d061:
----------------------------------------------------------------
Cédric Le Goater (1):
      xive/p10: Introduce new capability bits

Ravi Bangoria (2):
      p10: Set pa-features bit for 2nd DAWR
      cpufeatures: Advertise 2nd DAWR support

Ryan Grimm (1):
      asm/head.S: Fix p9

 asm/head.S                 |  1 +
 core/cpufeatures.c         |  8 ++++++++
 external/mambo/skiboot.tcl |  7 ++++---
 hdata/cpu-common.c         | 16 ++++++++++++++--
 hw/phb5.c                  |  4 ++--
 hw/xive2.c                 | 45 +++++++++++++++++++++++++++++++++++++--------
 include/xive.h             |  5 ++++-
 include/xive2-regs.h       |  6 ++++++

Signed-off-by: Klaus Heinrich Kiwi <klaus@linux.vnet.ibm.com>
diff --git a/openpower/configs/rainier_defconfig b/openpower/configs/rainier_defconfig
index 5d9a782..796dddb 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="99ce9ff31dc13da99936754232189ac5db71d061"
+BR2_SKIBOOT_CUSTOM_VERSION_VALUE="9d2dc84c080b1b453072ad0fee8c5294076b7bd4"
 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"