Process json for Extra and Common Interfaces

This commit contains code to process json to check if the
record and keyword combination updated using write keyword
is a part of extra interfaces and common interfaces of
VPD inventory json.

Signed-off-by: Sunny Srivastava <sunnsr25@in.ibm.com>
Change-Id: I95333abec6e7a7ad6981621f89e6d6e7edc7ecc9
diff --git a/const.hpp b/const.hpp
index 1fc24cc..e986425 100644
--- a/const.hpp
+++ b/const.hpp
@@ -38,6 +38,8 @@
 static constexpr auto MB_HOUR_END = 13;
 static constexpr auto MB_MIN_END = 16;
 
+static constexpr auto LOCATION_CODE_INF = "com.ibm.ipzvpd.Location";
+
 constexpr int IPZ_DATA_START = 11;
 constexpr uint8_t KW_VAL_PAIR_START_TAG = 0x84;
 constexpr uint8_t RECORD_END_TAG = 0x78;