Added fix for the yocto rebase build failure

Fixed below errors found during yocto rebase due to missing header
file algorithm.

```
calculate.cpp:
  error: 'sort' is not a member of 'std'; did you mean 'qsort'?
  error: 'max_element' is not a member of 'std'; did you mean 'tuple_element'?
  error: 'min_element' is not a member of 'std'; did you mean 'tuple_element'?
```

Tested: Build verified with yocto rebase patches.

Change-Id: Ie6f920e20a8ddb4b953b246b0debc4be87fa2462
Signed-off-by: Jayanth Othayoth <ojayanth@gmail.com>
diff --git a/calculate.cpp b/calculate.cpp
index f613049..ccdb723 100644
--- a/calculate.cpp
+++ b/calculate.cpp
@@ -1,5 +1,6 @@
 #include "calculate.hpp"
 
+#include <algorithm>
 #include <limits>
 #include <numeric>