Add cmsis-view to .gitignore.

Change-Id: I0e12a276007441469aba656b2778f1b12d2acc7b
diff --git a/.gitignore b/.gitignore
index 0d3eaf4..78bff7d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@
 /rtos/mbed-os
 /rtos/zephyr
 /tensorflow
+/cmsis-view