checkasm: guard new aarch64 cpuflags

AV_CPU_FLAG_SVE and AV_CPU_FLAG_SVE2

Author: JDarnley

tests/checkasm/checkasm.c

@@ -129,8 +129,10 @@ static const struct {
     { "NEON",     "neon",     AV_CPU_FLAG_NEON },
     { "DOTPROD",  "dotprod",  AV_CPU_FLAG_DOTPROD },
     { "I8MM",     "i8mm",     AV_CPU_FLAG_I8MM },
+#ifdef AV_CPU_FLAG_SVE
     { "SVE",      "sve",      AV_CPU_FLAG_SVE },
     { "SVE2",     "sve2",     AV_CPU_FLAG_SVE2 },
+#endif
 #elif ARCH_ARM
     { "ARMV5TE",  "armv5te",  AV_CPU_FLAG_ARMV5TE },
     { "ARMV6",    "armv6",    AV_CPU_FLAG_ARMV6 },