ANDROID: KVM: arm64: Decode pKVM module tracing section

In preparation to support in-pKVM-module declared events, decode the hyp
event ELF sections for later registration.

The hyp_event table (defined by asm/kvm_define_hypevents.h) is only
accessed by the host.

The hyp_event_id table (defined by nvhe/define_events.h) is populated by
the host before deprivilege and then is read-only for the hypervisor.

Bug: 278749606
Bug: 268495982
Change-Id: I7cd911144d58f8bbd173e23ce08d59bec10a6262
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>