Bump skiboot for POWER9 to latest skiboot master

Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
diff --git a/openpower/configs/romulus_defconfig b/openpower/configs/romulus_defconfig
index 60a1e4e..120833d 100644
--- a/openpower/configs/romulus_defconfig
+++ b/openpower/configs/romulus_defconfig
@@ -58,7 +58,7 @@
 BR2_OCC_BIN_FILENAME="occ.bin"
 BR2_CAPP_UCODE_BIN_FILENAME="cappucode.bin"
 BR2_SKIBOOT_CUSTOM_VERSION=y
-BR2_SKIBOOT_CUSTOM_VERSION_VALUE="28e96ffaba8b659f48312bdcea35a1403310fba3"
+BR2_SKIBOOT_CUSTOM_VERSION_VALUE="c9bf78b0556b1d2c2f3a5041d3da7df225227cde"
 BR2_PACKAGE_LOADKEYS=y
 BR2_ROMULUS_SYSTEM_XML_FILENAME="ROMULUS_hb.system.xml"
 BR2_ROMULUS_MRW_XML_FILENAME="ROMULUS_hb.mrw.xml"
diff --git a/openpower/configs/witherspoon_defconfig b/openpower/configs/witherspoon_defconfig
index 0e2f5d0..567dd3f 100644
--- a/openpower/configs/witherspoon_defconfig
+++ b/openpower/configs/witherspoon_defconfig
@@ -56,7 +56,7 @@
 BR2_OCC_BIN_FILENAME="occ.bin"
 BR2_CAPP_UCODE_BIN_FILENAME="cappucode.bin"
 BR2_SKIBOOT_CUSTOM_VERSION=y
-BR2_SKIBOOT_CUSTOM_VERSION_VALUE="28e96ffaba8b659f48312bdcea35a1403310fba3"
+BR2_SKIBOOT_CUSTOM_VERSION_VALUE="c9bf78b0556b1d2c2f3a5041d3da7df225227cde"
 BR2_PACKAGE_LOADKEYS=y
 BR2_WITHERSPOON_SYSTEM_XML_FILENAME="WITHERSPOON_hb.system.xml"
 BR2_WITHERSPOON_MRW_XML_FILENAME="WITHERSPOON_hb.mrw.xml"
diff --git a/openpower/configs/zaius_defconfig b/openpower/configs/zaius_defconfig
index f2acc86..13393bf 100644
--- a/openpower/configs/zaius_defconfig
+++ b/openpower/configs/zaius_defconfig
@@ -55,7 +55,7 @@
 BR2_OCC_BIN_FILENAME="occ.bin"
 BR2_CAPP_UCODE_BIN_FILENAME="cappucode.bin"
 BR2_SKIBOOT_CUSTOM_VERSION=y
-BR2_SKIBOOT_CUSTOM_VERSION_VALUE="28e96ffaba8b659f48312bdcea35a1403310fba3"
+BR2_SKIBOOT_CUSTOM_VERSION_VALUE="c9bf78b0556b1d2c2f3a5041d3da7df225227cde"
 BR2_PACKAGE_LOADKEYS=y
 BR2_ZAIUS_SYSTEM_XML_FILENAME="ZAIUS_hb.system.xml"
 BR2_ZAIUS_MRW_XML_FILENAME="ZAIUS_hb.mrw.xml"
diff --git a/openpower/configs/zz_defconfig b/openpower/configs/zz_defconfig
index a74e63e..1d6c163 100644
--- a/openpower/configs/zz_defconfig
+++ b/openpower/configs/zz_defconfig
@@ -50,7 +50,7 @@
 # BR2_PACKAGE_OCC is not set
 # BR2_PACKAGE_CAPP_UCODE is not set
 BR2_SKIBOOT_CUSTOM_VERSION=y
-BR2_SKIBOOT_CUSTOM_VERSION_VALUE="28e96ffaba8b659f48312bdcea35a1403310fba3"
+BR2_SKIBOOT_CUSTOM_VERSION_VALUE="c9bf78b0556b1d2c2f3a5041d3da7df225227cde"
 BR2_PACKAGE_LOADKEYS=y
 # BR2_PACKAGE_HOST_PPE42_BINUTILS is not set
 # BR2_PACKAGE_HOST_PPE42_GCC is not set