aws-sdk-cpp: upgrade 1.11.417 -> 1.11.418

(cherry picked from commit 9947a98)

Author: aws-iot-embedded-linux-ci

recipes-sdk/aws-sdk-cpp/aws-sdk-cpp_1.11.417.bb renamed to recipes-sdk/aws-sdk-cpp/aws-sdk-cpp_1.11.418.bb

@@ -19,7 +19,7 @@ SRC_URI = "\
     file://ptest_result.py \
     "
 
-SRCREV = "bc5593b1b3a6a250fc0d8a483e7bf31939bf62cf"
+SRCREV = "df7390ffd5af57504bedc661309b18c349bba3b6"
 
 S = "${WORKDIR}/git"