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: Ifdce925775a753cb71bfe44f3229d434b173283b
Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
diff --git a/strgfnhandler.cpp b/strgfnhandler.cpp
index 81c5ee4..ea60642 100644
--- a/strgfnhandler.cpp
+++ b/strgfnhandler.cpp
@@ -91,7 +91,7 @@
         return rc;
     }
 
-    // If we got here then set the resonse byte
+    // If we got here then set the response byte
     // to the number of bytes written
     std::memcpy(response, &len, 1);
     *dataLen = 1;
diff --git a/writefrudata.cpp b/writefrudata.cpp
index 116f168..50fa2d0 100644
--- a/writefrudata.cpp
+++ b/writefrudata.cpp
@@ -62,7 +62,7 @@
  * FRU dictionary is parsed FRU data for all the sections.
  *
  * @param[in] section - FRU section name
- * @param[in] key - key for secion
+ * @param[in] key - key for section
  * @param[in] delimiter - delimiter for parsing custom fields
  * @param[in] fruData - the FRU data to search for the section
  * @return FRU value
@@ -325,7 +325,7 @@
 }
 
 /**
- * Accepts a FRU area offset into a commom header and tells which area it is.
+ * Accepts a FRU area offset into a common header and tells which area it is.
  *
  * @param[in] areaOffset - offset to lookup the area type
  * @return the ipmi_fru_area_type
@@ -489,7 +489,7 @@
 int ipmiPopulateFruAreas(uint8_t* fruData, const size_t dataLen,
                          FruAreaVector& fruAreaVec)
 {
-    // Now walk the common header and see if the file size has atleast the last
+    // Now walk the common header and see if the file size has at least the last
     // offset mentioned by the struct common_header. If the file size is less
     // than the offset of any if the FRU areas mentioned in the common header,
     // then we do not have a complete file.