Fix spelling mistakes using codespell

This commit corrects various spelling mistakes throughout the
repository. The corrections were made automatically using `codespell`[1]
tool.

[1]: https://github.com/codespell-project/codespell

Change-Id: Icdb4dc6e49ff7d9ab49718f4feda93da9f244dd4
Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
diff --git a/snmp_serialize.hpp b/snmp_serialize.hpp
index d5189a9..9d9d49b 100644
--- a/snmp_serialize.hpp
+++ b/snmp_serialize.hpp
@@ -24,7 +24,7 @@
  */
 fs::path serialize(Id id, const Client& manager, const fs::path& path);
 
-/** @brief Deserialze SNMP manager/client info into a D-Bus object
+/** @brief Deserialize SNMP manager/client info into a D-Bus object
  *  @param[in] path - pathname of persisted manager/client file.
  *  @param[in] manager - reference to snmp client/manager object
  *                       which is the target of deserialization.