Function core::arch::aarch64::vrshrn_high_n_u32

pub unsafe fn vrshrn_high_n_u32(
    a: uint16x4_t, 
    b: uint32x4_t, 
    const N: i32
) -> uint16x8_t

This is supported on AArch64 and target feature neon only.

Rounding shift right narrow