kvm tools: Fix alaising errors in LINT assignment

I'm getting this on x86-32, gcc 4.4.3:

  CC       x86/kvm-cpu.o
cc1: warnings being treated as errors
x86/kvm-cpu.c: In function ‘kvm_cpu__set_lint’:
x86/kvm-cpu.c:89: error: dereferencing pointer ‘lapic’ does break strict-aliasing rules
x86/kvm-cpu.c:88: error: dereferencing pointer ‘lapic’ does break strict-aliasing rules
x86/kvm-cpu.c:83: note: initialized from here
make: *** [x86/kvm-cpu.o] Error 1

Removing the nasty aliasing seems to be a good way to go.

Acked-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Pekka Enberg <penberg@kernel.org>