fix SIMD fp sqr on p32 target (PowerPC+VMX/AltiVec under QEMU+Debian7)
fix SIMD fp sqr on p32 target (PowerPC+VMX/AltiVec under QEMU+Debian7)

VectorChief/QuadRay-engine,VectorChief/QuadRay-engine,VectorChief/QuadRay-engine