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: Ia7dbb04ead7565d63437a5878fd8a543029d9a93
Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
diff --git a/platform-mc/test/terminus_test.cpp b/platform-mc/test/terminus_test.cpp
index 0baa8b7..609deed 100644
--- a/platform-mc/test/terminus_test.cpp
+++ b/platform-mc/test/terminus_test.cpp
@@ -78,7 +78,7 @@
         0x1,
         0x0,  // Entity instance number =1
         0,
-        0,    // Overal system
+        0,    // Overall system
         0,    // shared Name Count one name only
         01,   // nameStringCount
         0x65, 0x6e, 0x00,
@@ -193,7 +193,7 @@
         0x1,
         0x0,  // Entity instance number =1
         0,
-        0,    // Overal system
+        0,    // Overall system
         0,    // shared Name Count one name only
         01,   // nameStringCount
         0x65, 0x6e, 0x00,
@@ -313,7 +313,7 @@
         0x1,
         0x0,  // Entity instance number =1
         0,
-        0,    // Overal system
+        0,    // Overall system
         0,    // shared Name Count one name only
         01,   // nameStringCount
         0x65, 0x6e, 0x00,
@@ -367,7 +367,7 @@
         0x1,
         0x0,  // Entity instance number =1
         0,
-        0,    // Overal system
+        0,    // Overall system
         0,    // shared Name Count one name only
         01,   // nameStringCount
         0x65, 0x6e, 0x00,