target/riscv: Use explicit little-endian LD/ST API

We only build our RISC-V targets as little-endian, therefore the LD/ST API expands to its little-endian variant. Directly use the latter. Mechanical change running: $ for a in uw w l q; do \ sed -i -e "s/ld${a}_p(/ld${a}_le_p(/" \ $(git grep -wlE '(ld|st)u?[wlq]_p' target/riscv); done Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <20260318103122.97244-3-philmd@linaro.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>