Update buildroot to 2015.05 base

Adds petitboot to openpower overlay rather rather than in buildroot branch.

Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
diff --git a/openpower/package/petitboot/Config.in b/openpower/package/petitboot/Config.in
new file mode 100644
index 0000000..a6021dd
--- /dev/null
+++ b/openpower/package/petitboot/Config.in
@@ -0,0 +1,21 @@
+config BR2_PACKAGE_PETITBOOT
+	bool "petitboot"
+	# petitboot needs udev /dev management
+	depends on BR2_PACKAGE_HAS_UDEV
+	select BR2_PACKAGE_NCURSES
+	select BR2_PACKAGE_NCURSES_TARGET_PANEL
+	select BR2_PACKAGE_NCURSES_TARGET_FORM
+	select BR2_PACKAGE_NCURSES_TARGET_MENU
+	# run-time dependency only
+	select BR2_PACKAGE_KEXEC_LITE if !BR2_PACKAGE_KEXEC
+	# run-time dependency only
+	select BR2_PACKAGE_POWERPC_UTILS if BR2_powerpc || BR2_powerpc64 || BR2_powerpc64le
+	# run-time dependency only
+	select BR2_PACKAGE_IPRUTILS if BR2_powerpc || BR2_powerpc64 || BR2_powerpc64le
+	help
+	  Petitboot is a small kexec-based bootloader
+
+	  http://www.kernel.org/pub/linux/kernel/people/geoff/petitboot/petitboot.html
+
+comment "petitboot requires udev to be enabled"
+	depends on !BR2_PACKAGE_HAS_UDEV