Allow for more heap

A fully-fledged DICE chain that includes subcomponent information for
many APKs can be pretty large. Give Secretkeeper enough heap that
it has enough headroom to parse such DICE chains.

Test with 32x session setup that includes a big DICE chain with
subcomponent information (from CompOS).

Bug: 327526008
Test: VtsSecretkeeperTargetTest with aosp/3000947 on shiba
Change-Id: Ic81155912504a9f9be5eab3590805644c5031b01
2 files changed