power: qpnp-fg-gen4: Don't update learned capacity in multi-profile loading

When multi-profile loading is enabled and a new profile is loaded
don't update the learned capacity of battery from new profile.
This can cause a fluctuation in SOH as the new learned capacity
sample is going to vary.

Change-Id: I28de9a5c3949e1100c1afe80669a997679730ff4
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>