ANDROID: KVM: arm64: Resolve hyp module addresses using ELF sections

Resolving the addresses of the hypervisor sections within a loadable
module using symbol assignment is fragile, particularly in the face of
mergeable sections (i.e. those emitted with SHF_MERGE by the compiler).

Instead, parse the ELF .hyp.* sections directly and remove the need for
global symbols in the hypervisor module linker script.

Signed-off-by: Will Deacon <will@kernel.org>
[will: Preserve function_nocfi() calls which aren't needed in android14-6.1]
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 261855285
Change-Id: I91d88e1a341b91ffe52ffc770dddc9b46ccb3aa4