2e: Define missing cache partition type

2022-05-12 06:54:37 - ota_from_target_files.py - WARNING : --- can't determine the cache partition size ---
2022-05-12 06:54:37 - ota_from_target_files.py - INFO    : (using device-specific extensions from target_files)
2022-05-12 06:54:37 - common.py - INFO    : loaded device-specific extensions from /raid/eos/osR/out/target/product/2e/obj/PACKAGING/target_files_intermediates/lineage_2e-target_files-eng.theimpulson/META/releasetools.py
2022-05-12 06:54:37 - sparse_img.py - INFO    : Total of 413952 4096-byte output blocks in 33 input chunks.
2022-05-12 06:54:39 - blockimgdiff.py - INFO    : Finding transfers...
Traceback (most recent call last):
  File "/raid/eos/osR/out/host/linux-x86/bin/ota_from_target_files/internal/stdlib/runpy.py", line 174, in _run_module_as_main
  File "/raid/eos/osR/out/host/linux-x86/bin/ota_from_target_files/internal/stdlib/runpy.py", line 72, in _run_code
  File "/raid/eos/osR/out/host/linux-x86/bin/ota_from_target_files/__main__.py", line 12, in <module>
  File "/raid/eos/osR/out/host/linux-x86/bin/ota_from_target_files/internal/stdlib/runpy.py", line 174, in _run_module_as_main
  File "/raid/eos/osR/out/host/linux-x86/bin/ota_from_target_files/internal/stdlib/runpy.py", line 72, in _run_code
  File "/raid/eos/osR/out/host/linux-x86/bin/ota_from_target_files/ota_from_target_files.py", line 2300, in <module>
  File "/raid/eos/osR/out/host/linux-x86/bin/ota_from_target_files/ota_from_target_files.py", line 2279, in main
  File "/raid/eos/osR/out/host/linux-x86/bin/ota_from_target_files/ota_from_target_files.py", line 2019, in GenerateNonAbOtaPackage
  File "/raid/eos/osR/out/host/linux-x86/bin/ota_from_target_files/ota_from_target_files.py", line 774, in WriteFullOTAPackage
  File "/raid/eos/osR/out/host/linux-x86/bin/ota_from_target_files/ota_from_target_files.py", line 689, in GetBlockDifferences
  File "/raid/eos/osR/out/host/linux-x86/bin/ota_from_target_files/common.py", line 2661, in __init__
  File "/raid/eos/osR/out/host/linux-x86/bin/ota_from_target_files/blockimgdiff.py", line 342, in Compute
  File "/raid/eos/osR/out/host/linux-x86/bin/ota_from_target_files/blockimgdiff.py", line 1561, in FindTransfers
AssertionError
06:54:39 ninja failed with: exit status 1

Signed-off-by: Aayush Gupta <theimpulson@e.email>