CMakeLists: Don't build the upcl module

It doesn't build on 64-bit Linux so drop it for now.

Signed-off-by: Pekka Enberg <penberg@iki.fi>
test/m88k: Fix 64-bit type and printf format problems

Spotted by GCC:

/home/penberg/libcpu/test/m88k/main.cpp: In function ‘void dump_state(uint8_t*, m88k_grf_t*, m88k_xrf_t*)’:
/home/penberg/libcpu/test/m88k/main.cpp:141:37: warning: format ‘%llx’ expects argument of type ‘long long unsigned int’, but argument 4 has type ‘uint64_t {aka long unsigned int}’ [-Wformat=]
    ieee754_fp80_to_double(xrf->x[i]));
                                     ^
/home/penberg/libcpu/test/m88k/main.cpp: In function ‘int main(int, char**)’:
/home/penberg/libcpu/test/m88k/main.cpp:272:39: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
  stack = (char *)(ramsize - STACK_SIZE); // THIS IS *GUEST* ADDRESS!
                                       ^
/home/penberg/libcpu/test/m88k/main.cpp:373:39: warning: format ‘%lld’ expects argument of type ‘long long int’, but argument 2 has type ‘uint64_t {aka long unsigned int}’ [-Wformat=]
  printf("%lld -- %lld\n", t2-t1, t4-t3);
                                       ^
/home/penberg/libcpu/test/m88k/main.cpp:373:39: warning: format ‘%lld’ expects argument of type ‘long long int’, but argument 3 has type ‘uint64_t {aka long unsigned int}’ [-Wformat=]

Signed-off-by: Pekka Enberg <penberg@iki.fi>