Support building p10 PNOR images

Implements initial experimental support for building P10 PNOR images using
GCC8 (host and cross compiler) as the toolchain

- Introduced rainier configuration files
- Added p10 specific packages for sbe, hcode, hostboot, occ
- Pointed at starting commits for various pacakges to build op-build for p10
- Created various patches to fully compile all packages, to be removed
  when package owners have time to address them
- Generally updated package configurations to support p10 and p10 package
  variants

Signed-off-by: Nick Bofferding <bofferdn@us.ibm.com>
diff --git a/openpower/package/sbe-p10/Config.in b/openpower/package/sbe-p10/Config.in
new file mode 100644
index 0000000..3468511
--- /dev/null
+++ b/openpower/package/sbe-p10/Config.in
@@ -0,0 +1,33 @@
+config BR2_PACKAGE_SBE_P10
+        bool "sbe-p10"
+        default y if (BR2_OPENPOWER_PLATFORM && BR2_OPENPOWER_POWER10)
+        select BR2_CPP
+        depends on BR2_PACKAGE_HCODE_P10
+        help
+            Project to build the sbe firmware codebase for P10
+
+if BR2_PACKAGE_SBE_P10
+
+choice
+	prompt "SBE version"
+	default BR2_SBE_P10_LATEST_VERSION
+
+config BR2_SBE_P10_LATEST_VERSION
+	bool "Use latest SBE master"
+
+config BR2_SBE_P10_CUSTOM_VERSION
+	bool "Custom SBE version"
+
+endchoice
+
+config BR2_SBE_P10_CUSTOM_VERSION_VALUE
+	string "SBE version"
+	depends on BR2_SBE_P10_CUSTOM_VERSION
+
+config BR2_SBE_P10_VERSION
+	string
+	default "59ca18cfdb3f2585e95e664be751440ad2557550" if BR2_SBE_P10_LATEST_VERSION
+	default BR2_SBE_P10_CUSTOM_VERSION_VALUE \
+		if BR2_SBE_P10_CUSTOM_VERSION
+
+endif