Add overwrite capability to ARM host image script

If the user specifies an image that already exists
this script will now overwrite the specified
partitions with newly generated data.

BUG: 141692755
Test: local build and run on rock pi 4b
Change-Id: I85506925a33cb05dfcb7458b17f25b12b55f420d
1 file changed
tree: 299016b0cf20879c0945f6f39e0323443d06d334
  1. common/
  2. guest/
  3. host/
  4. tests/
  5. tools/
  6. Android.bp
  7. Android.mk
  8. OWNERS
  9. TEST_MAPPING