Update git submodules

* Update hardware/libhardware from branch 'master'
  to 6b14bd1a083e996e786d021d84629e64c144ff9a
  - Merge "Remove custom timestamp from hw/libhw/input"
  - Remove custom timestamp from hw/libhw/input
    
    These are no longer used by EventHub, and should not be carried forward.
    
    Bug: 116601048
    Test: presubmit only
    Merged-In: I35129484d9945dcd4d291e0f2fac894e07c53c04
    Change-Id: I35129484d9945dcd4d291e0f2fac894e07c53c04
    
1 file changed