update git modules

.gitmodules

 [submodule "accelerator-wrapper"]
 	path = accelerator_wrapper_tech
-url = https://git.soton.ac.uk:soclabs/accelerator_wrapper_tech.git
+url = https://git.soton.ac.uk/soclabs/accelerator_wrapper_tech.git
 [submodule "nanosoc"]
 	path = nanosoc_tech
-url = https://git.soton.ac.uk:soclabs/nanosoc_tech.git
+url = https://git.soton.ac.uk/soclabs/nanosoc_tech.git
 [submodule "socsim"]
 	path = socsim_flow
-url = https://git.soton.ac.uk:soclabs/socsim_flow.git
+url = https://git.soton.ac.uk/soclabs/socsim_flow.git
 [submodule "CHIPKIT"]
 	path = chipkit_flow
-url = https://git.soton.ac.uk:soclabs/chipkit_flow.git
+url = https://git.soton.ac.uk/soclabs/chipkit_flow.git
 [submodule "generic-lib"]
 	path = generic_lib_tech
-	url = https://git.soton.ac.uk:soclabs/generic_lib_tech.git
+	url = https://git.soton.ac.uk/soclabs/generic_lib_tech.git
 [submodule "fpga-lib"]
 	path = fpga_lib_tech
-	url = https://git.soton.ac.uk:soclabs/fpga_lib_tech.git
+	url = https://git.soton.ac.uk/soclabs/fpga_lib_tech.git
 [submodule "rtl_primitives_tech"]
 	path = rtl_primitives_tech
-	url = https://git.soton.ac.uk:soclabs/rtl_primitives_tech.git
+	url = https://git.soton.ac.uk/soclabs/rtl_primitives_tech.git