cpufreq: qcom-hw: remove check for hw enable during probe

Given that there are no issues selecting a desired_state before
EPSS is enabled for a particular cluster, let's skip the check
for enable bit on clusters to give better flexibility to the
cpufreq driver to probe successfully on configuration where
not all clusters are enabled.

Change-Id: I3548c5390f899e5a1108d00c00e24837726c9543
Signed-off-by: David Dai <daidavid1@codeaurora.org>