LTP: skip ltp sched hackbench tests on qemu arm and qemu arm64

LTP sched tests hackbench crashing the system so skip them.
Ref:
https://bugs.linaro.org/show_bug.cgi?id=3777

Change-Id: I90f52eb8f09c93d1b59a735a3610924b657a662b
Signed-off-by: Naresh Kamboju <naresh.kamboju@linaro.org>
diff --git a/automated/linux/ltp/skipfile-lkft.yaml b/automated/linux/ltp/skipfile-lkft.yaml
index 1c27387..07f29ca 100644
--- a/automated/linux/ltp/skipfile-lkft.yaml
+++ b/automated/linux/ltp/skipfile-lkft.yaml
@@ -301,8 +301,7 @@
 
   - reason: "LKFT: qemu: LTP skip failed timing test cases"
     url: https://bugs.linaro.org/show_bug.cgi?id=3768
-    environments:
-      - production
+    environments: all
     boards:
       - qemu_x86_64
       - qemu_arm64
@@ -314,3 +313,15 @@
       - futex_wait05
       - nanosleep01
       - poll02
+
+  - reason: >
+      LKFT: LTP skip hackbench01/02 on qemu_arm and qemu_arm64 causing kernel dump
+    url: https://bugs.linaro.org/show_bug.cgi?id=3777
+    environments: all
+    boards:
+      - qemu_arm64
+      - qemu_arm
+    branches: all
+    tests:
+      - hackbench01
+      - hackbench02