Flip to fscd- wedge100

Summary: This diff flips the switch to fscd for wedge100.

Test Plan:
Lab testing:
root@bmc-oob:/tmp/tests/wedge100/unittests# python fscd_test.py
[FSCD Testing] Setting (userver=23.0C, switch=23.0C ,intake=23.0C, outlet=23.0C)
[FSCD Testing] PWM test,expected=38% [PASSED]
[FSCD Testing] Setting (userver=23.0C, switch=28.0C ,intake=28.0C, outlet=23.0C)
[FSCD Testing] PWM test,expected=38% [PASSED]
[FSCD Testing] Setting (userver=30.0C, switch=32.0C ,intake=33.0C, outlet=30.0C)
[FSCD Testing] PWM test,expected=38% [PASSED]
[FSCD Testing] Setting (userver=32.0C, switch=32.0C ,intake=37.0C, outlet=32.0C)
[FSCD Testing] PWM test,expected=51% [PASSED]
[FSCD Testing] Setting (userver=32.0C, switch=32.0C ,intake=39.0C, outlet=32.0C)
[FSCD Testing] PWM test,expected=51% [PASSED]
[FSCD Testing] Setting (userver=32.0C, switch=38.0C ,intake=42.0C, outlet=32.0C)
[FSCD Testing] PWM test,expected=74% [PASSED]
[FSCD Testing] Setting (userver=40.0C, switch=41.0C ,intake=50.0C, outlet=40.0C)
[FSCD Testing] PWM test,expected=100% [PASSED]
[FSCD Testing] Setting (userver=46.0C, switch=47.0C ,intake=85.0C, outlet=46.0C)
[FSCD Testing] PWM test,expected=100% [PASSED]
[FSCD Testing] System should shutdown because temperature  limit reached. Verifying...
[FSCD Testing] Host action test: Expected userver to power off due to high temperature event [PASSED]
[FSCD Testing] Recovering system for next test...
[FSCD Testing] Setting (userver=40.0C, switch=41.0C ,intake=44.0C, outlet=40.0C)
[FSCD Testing] PWM test,expected=74% [PASSED]
[FSCD Testing] Ready for next test...
g_cdc gadget: high-speed config #1: CDC Composite (ECM + ACM)
[FSCD Testing] Host action test: Expected userver to power off due to read failure event [PASSED]
[FSCD Testing] PWM test,expected=100% [PASSED]
g_cdc gadget: high-speed config #1: CDC Composite (ECM + ACM)
[FSCD Testing] Host action test: Expected userver to power on due to fan RPM read failure event but fantray status is GOOD [PASSED]
FSCD Testing [PASSED]

Accton Testing:
Based on chat with vii, data from FSCD is similar to Fand. On startup there is improvement.

Reviewed By: covracer

fbshipit-source-id: 53db311

meta-facebook/meta-wedge100/recipes-core/images/wedge100-image.bb

@@ -35,7 +35,7 @@ IMAGE_INSTALL += " \
   spatula \
   trousers \
   tpm-tools \
-  fan-ctrl \
+  fscd  \
   "
 
 IMAGE_FEATURES += " \