change cmsis5 to master

.gitmodules

@@ -31,6 +31,7 @@
 [submodule "lib/CMSIS_5"]
 	path = lib/CMSIS_5
 	url = https://github.com/ARM-software/CMSIS_5.git
+	branch = master
 [submodule "lib/CMSIS_4"]
 	path = lib/CMSIS_4
 	url = https://github.com/ARM-software/CMSIS.git

lib/CMSIS_5

@@ -1 +1 @@
-Subproject commit 02459e61c2941a4c1f6e8462500faac4c31ed654
+Subproject commit 4a65d88011a1595b7c8b42fa0d70b7bdfc132acc