Spelling fixes

Change-Id: I3a85e921f87401701f3ebb22e972e0d3f9cf19c1
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/test/watchdog_test.cpp b/test/watchdog_test.cpp
index d3e09e6..57f32e9 100644
--- a/test/watchdog_test.cpp
+++ b/test/watchdog_test.cpp
@@ -102,7 +102,7 @@
     EXPECT_EQ(false, expired);
 }
 
-/** @brief Make sure the Inteval can be updated directly.
+/** @brief Make sure the Interval can be updated directly.
  */
 TEST_F(WdogTest, verifyIntervalUpdateReceived)
 {
diff --git a/watchdog.hpp b/watchdog.hpp
index cb26b7e..f9657ac 100644
--- a/watchdog.hpp
+++ b/watchdog.hpp
@@ -74,7 +74,7 @@
 
         /** @brief Reset timer to expire after new timeout in milliseconds.
          *
-         *  @param[in] value - the time in miliseconds after which
+         *  @param[in] value - the time in milliseconds after which
          *                     the watchdog will expire
          *
          *  @return: updated timeout value if watchdog is enabled.