Added -p to uptime command on header (and changed it to run always)

Test: manual verification
Test: mmm -j32 frameworks/native/cmds/dumpstate/ && adb sync && \
      adb shell /data/nativetest/dumpstate_test/dumpstate_test && \
      adb shell /data/nativetest64/dumpstate_test/dumpstate_test && \
      printf "\n\n#### GOOD NEWS, EVERYONE: ALL TESTS PASSED! ####\n"

Bug: 65205261

Change-Id: Ide1aa2dc9f3446f9597433867445dd07731ae563