power: qpnp-charger: allow negative battery temperatures
power: qpnp-charger: allow negative battery temperatures

Allow customers to use negative battery temperature voltages
when monitoring for JEITA compliance.

Change-Id: If1179346cf4c5991ae308439fce9cdcb8fb23cc5
Signed-off-by: David Keitel <bd5c00b7233f7e9d1df99d90a21c081aa6291657@codeaurora.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas