power.stats: Add power entry for ODPM

============= PowerStats HAL 1.0 rail energy data ==============
          Subsys                 Rail    Cumulative Energy
  VDDCX with NPU      VPH_PWR_S2C_S3C            24.26 mWs
        VDD_APC0          VPH_PWR_S4C            25.33 mWs
        VDD_APC1      VPH_PWR_S5C_S6C            24.57 mWs
         display         VPH_PWR_OLED            31.63 mWs
========== End of PowerStats HAL 1.0 rail energy data ==========

Bug: 141966468
Test: adb shell "lshal debug android.hardware.power.stats@1.0::IPowerStats/default"
Change-Id: Ifdcae5b3e4d7736bc7fec542448737a8c7720e62
Signed-off-by: Darren Hsu <darrenhsu@google.com>