target/arm: Pass correct esize to sve_st1_z() for LD1Q, ST1Q

target/arm: Pass correct esize to sve_st1_z() for LD1Q, ST1Q

Our implementation of the helper functions for the LD1Q and ST1Q
insns reused the existing DO_LD1_ZPZ_D and DO_ST1_ZPZ_D macros.  This
passes the wrong esize (8, not 16) to sve_ldl_z().

Create new macros DO_LD1_ZPZ_Q and DO_ST1_ZPZ_Q which pass the
correct esize, and use them for the LD1Q and ST1Q helpers.

Fixes: d2aa9a804ee ("target/arm: Implement LD1Q, ST1Q for SVE2p1")
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250723165458.3509150-6-peter.maydell@linaro.org