ANDROID: arch_topology: Export thermal pressure symbol

Symbol needed for implementing Qualcomm's load tracking scheme WALT via
vendor modules. This enables the vendor module to be able to use the
arch_scale_thermal_pressure() API.

This reverts commit c18e2df0 ("Revert "ANDROID: arch_topology: Export
thermal pressure symbol"").
Original change was reverted, now bringing this back in.

Bug: 175847109
Signed-off-by: Sai Harshini Nimmala <quic_snimmala@quicinc.com>
Change-Id: Iaa5def63f281636ce6b0c9781ca3c3cd9efd5156