manager: Save and Restore BIOS Attributes

This commit saves any updates made to BIOS attributes
to VPD.

It also restores the attributes from the VPD when we
start VPD manager.

Signed-off-by: Santosh Puranik <santosh.puranik@in.ibm.com>
Change-Id: Idb28e2f89d21ccd89eb8e56490eb7f31397ff5f5
diff --git a/vpd-manager/meson.build b/vpd-manager/meson.build
index 604f2b6..9b5c5c9 100644
--- a/vpd-manager/meson.build
+++ b/vpd-manager/meson.build
@@ -11,6 +11,7 @@
                       'editor_impl.cpp',
                       'reader_impl.cpp',
                       'gpioMonitor.cpp',
+                      'bios_handler.cpp',
                       '../impl.cpp',
                       '../vpd-parser/ipz_parser.cpp',
                       '../ibm_vpd_utils.cpp',