Restructuring LEDs test cases execution

The fix controls the execution as follows
  - If a given LEDs path exist then it will execute the subsequent
    LEDs ON,OFF, Blink use cases
  - Else ignore and drops the execution of the test cases

Resolves openbmc/openbmc-test-automation#10

Change-Id: I7f7eb19eded05b919484edab8baf8219bedc4384
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
1 file changed