Update git submodules

* Update platform/external/rust/crates/clap from branch 'master'
  to 4cff2623353357956468c885c5ca8343a8362a13
  - Update TEST_MAPPING
    
    Test: cd external/rust/crates && atest --host -c
    Change-Id: Ib4662be94dcff6da29a70c82b3ca10ed54aadc9a
    
  - Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: d9335dc735 am: ca31734680 am: a9526b2dcc
    
    Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/clap/+/1912050
    
    Change-Id: I0c93c510b5853542366cbda23279218d55bd279a
    
  - Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: d9335dc735 am: ca31734680
    
    Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/clap/+/1912050
    
    Change-Id: Ia64d72d9b28cc15d3add8183e29feb153ae181a8
    
  - Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: d9335dc735
    
    Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/clap/+/1912050
    
    Change-Id: I29e6a40def3516776e31f8d51e183e10243610a3
    
  - Update TEST_MAPPING am: ec33761387 am: 0df3974b53 am: a5068835dd am: 9799f73aab
    
    Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/clap/+/1813700
    
    Change-Id: If63e66c7f57b7c8130b4ce8e7cc58434cbb7fd60
    
  - Update TEST_MAPPING am: ec1b56574d am: f0babcac3f am: ff4b9a94e7 am: b8f60f91f0
    
    Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/clap/+/1806069
    
    Change-Id: I27a6051f24e1c55ff879fd7d7346bb1f54844dc7
    
  - Update vpnprofilestore_test to legacykeystore_test in TEST_MAPPING am: 1943d0ad3d am: effabfc650 am: af2bb72088
    
    Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/clap/+/1756435
    
    Change-Id: Iad3195530cc9b182ae04c18ebef635858378a6e3