openpower: Add loadkeys package to enable backtab

This is a copy of the buildroot package 'kbd', but with a custom install
command that only installs the 'loadkeys' binary, saving almost 1MB of
space.

The loadkeys command then allows us to add additional keymap definitions
during init to enable the use of Shift-Tab on the VGA console.

Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
diff --git a/openpower/package/loadkeys/Config.in b/openpower/package/loadkeys/Config.in
new file mode 100644
index 0000000..c53391c
--- /dev/null
+++ b/openpower/package/loadkeys/Config.in
@@ -0,0 +1,11 @@
+config BR2_PACKAGE_LOADKEYS
+	bool "loadkeys"
+	select BR2_PACKAGE_GETTEXT if BR2_NEEDS_GETTEXT_IF_LOCALE
+	select BR2_PACKAGE_CHECK
+	# Uses fork()
+	depends on BR2_USE_MMU
+	help
+	  Custom package to install just the 'loadkeys'
+	  binary from the kbd package.
+
+	  http://kernel.org/pub/linux/utils/kbd/