ANDROID: KVM: arm64: Fix calculation for number of relocs in .hyp.reloc

Fix the calculation to determine the number of module relocs present in
the '.hyp.reloc' section to divide by the size of 'kvm_nvhe_reloc_t' (4)
instead of the size of a pointer (8).

Fixes: ace50253 ("ANDROID: KVM: arm64: Resolve hyp module addresses using ELF sections")
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 261855285
Change-Id: Ia7afc508039d549ae061793afa39fde9d844c069