libflash: Add option to install pflash

Extend the libflash package to also install the pflash utility. This
enables users to query and modify the PNOR safely from the host, as well
as supporting future automation changes.

Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
diff --git a/openpower/package/petitboot/Config.in b/openpower/package/petitboot/Config.in
index e5769de..ef002b4 100644
--- a/openpower/package/petitboot/Config.in
+++ b/openpower/package/petitboot/Config.in
@@ -27,6 +27,7 @@
 	bool "petitboot-mtd"
 	depends on BR2_PACKAGE_PETITBOOT
 	select BR2_PACKAGE_LIBFLASH
+	select BR2_PACKAGE_PFLASH
 	help
 	  Adds Petitboot support for MTD devices