target/arm: Use new FPCR_NZCV_MASK constant

We defined a constant name for the mask of NZCV bits in the FPCR/FPSCR
in the previous commit; use it in a couple of places in existing code,
where we're masking out everything except NZCV for the "load to Rt=15
sets CPSR.NZCV" special case.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201119215617.29887-12-peter.maydell@linaro.org

target/arm/translate-vfp.c.inc

@@ -744,7 +744,7 @@ static bool gen_M_fp_sysreg_read(DisasContext *s, int regno,
          * helper call for the "VMRS to CPSR.NZCV" insn.
          */
         tmp = load_cpu_field(vfp.xregs[ARM_VFP_FPSCR]);
-        tcg_gen_andi_i32(tmp, tmp, 0xf0000000);
+        tcg_gen_andi_i32(tmp, tmp, FPCR_NZCV_MASK);
         storefn(s, opaque, tmp);
         break;
     default:
@@ -885,7 +885,7 @@ static bool trans_VMSR_VMRS(DisasContext *s, arg_VMSR_VMRS *a)
         case ARM_VFP_FPSCR:
             if (a->rt == 15) {
                 tmp = load_cpu_field(vfp.xregs[ARM_VFP_FPSCR]);
-                tcg_gen_andi_i32(tmp, tmp, 0xf0000000);
+                tcg_gen_andi_i32(tmp, tmp, FPCR_NZCV_MASK);
             } else {
                 tmp = tcg_temp_new_i32();
                 gen_helper_vfp_get_fpscr(tmp, cpu_env);