Fixed failing travis build.
# Original script from https://github.com/gregvw/amd_sdk/
# Location from which get nonce and file name from
-URL="http://developer.amd.com/amd-accelerated-parallel-processing-app-sdk/"
-URLDOWN="http://developer.amd.com/amd-license-agreement-appsdk/"
+URL="https://developer.amd.com/amd-accelerated-parallel-processing-app-sdk/"
+URLDOWN="https://developer.amd.com/amd-license-agreement-appsdk/"
NONCE1_STRING='name="amd_developer_central_downloads_page_nonce"'
FILE_STRING='name="f"'
