Stop polling the GPU PGOOD fault GPIO

The UCD90160 has been recently reconfigured to tie its
GPU PGOOD GPIO into its master PGOOD.  This means we no
longer have to poll it every second since now if there is a
GPU PGOOD error it will drop the master PGOOD signal SYS_PWR_OK
and the power fault analysis code will be called to perform
a full check and the isolation will be done there.

Change-Id: Ia0b21014f6130ed79f5735c3be6cf5c1d39782fc
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
diff --git a/power-sequencer/ucd90160_defs.cpp b/power-sequencer/ucd90160_defs.cpp
index 6556b10..997650e 100644
--- a/power-sequencer/ucd90160_defs.cpp
+++ b/power-sequencer/ucd90160_defs.cpp
@@ -57,7 +57,7 @@
                           extraAnalysisType::none},
                 GPIConfig{3, 10, "MEM_GOOD1"s, false,
                           extraAnalysisType::none},
-                GPIConfig{4, 14, "GPU_PGOOD"s, true,
+                GPIConfig{4, 14, "GPU_PGOOD"s, false,
                           extraAnalysisType::gpuPGOOD},
                 GPIConfig{5, 17, "GPU_TH_OVERT"s, true,
                           extraAnalysisType::gpuOverTemp},