pid/stepwisecontroller: fixup method name

Fixup name to follow style guide.

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: Ibb218412dc99b48cd7dffe64b0b71f3ec21f342a
diff --git a/pid/stepwisecontroller.hpp b/pid/stepwisecontroller.hpp
index e192fc7..5b86bed 100644
--- a/pid/stepwisecontroller.hpp
+++ b/pid/stepwisecontroller.hpp
@@ -39,7 +39,7 @@
         return _id;
     }
 
-    ec::StepwiseInfo& get_stepwise_info(void)
+    ec::StepwiseInfo& getStepwiseInfo(void)
     {
         return _stepwise_info;
     }