submodule update

Author: bsdevlin

.gitmodules

@@ -1,6 +1,6 @@
 [submodule "submodules/fpga"]
 	path = submodules/fpga
 	url = https://github.com/ZcashFoundation/zcash-fpga.git
-[submodule "aws-fpga"]
-	path = aws-fpga
+[submodule "submodules/aws-fpga"]
+	path = submodules/aws-fpga
 	url = https://github.com/aws/aws-fpga.git