We are receiving reports from partners in the field that they are failing the OEMCrypto tests only because the tests assume the BCC will fit into 5k of memory but their BCC is nearly 8k in size. This patch increases the buffer to 10k. Bug: 354834629 Test: x86-64 Merged from https://widevine-internal-review.googlesource.com/204773 Change-Id: I360196518b7651139c003505253d1aed6a0c3907