[fuzzer][test] Disable noasan-strcmp test for AArch64

This patch disables the `noasan-strcmp.test` for AArch64 Linux as it
consistently fails on the buildbot machine while passing on other
AArch64 Linux systems.

We have seen similar issues on noasan-strncmp.test in past which had
random failures on certain machines/environments.

Following buildbot is failing in both check stage1 and stage2:
https://lab.llvm.org/buildbot/#/builders/121/builds/711

compiler-rt/test/fuzzer/noasan-strcmp.test

@@ -1,4 +1,4 @@
-UNSUPPORTED: darwin, target={{.*(freebsd|windows).*}}
+UNSUPPORTED: darwin, target={{.*(freebsd|windows).*}}, target=aarch64{{.*}}
 
 RUN: %cpp_compiler -fno-sanitize=address %S/StrcmpTest.cpp -o %t-NoAsanStrcmpTest
 RUN: not %run %t-NoAsanStrcmpTest -seed=1 -runs=2000000   2>&1 | FileCheck %s