8290460: Alpine: disable some panama tests that rely on std::thread

Backport-of: d7f0de2

Author: RealCLanger

test/jdk/java/foreign/TestUpcallAsync.java

@@ -25,6 +25,7 @@
  * @test
  * @enablePreview
  * @requires ((os.arch == "amd64" | os.arch == "x86_64") & sun.arch.data.model == "64") | os.arch == "aarch64"
+ * @requires !vm.musl
  * @build NativeTestHelper CallGeneratorHelper TestUpcallBase
  *
  * @run testng/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-VerifyDependencies

test/jdk/java/foreign/enablenativeaccess/TestEnableNativeAccess.java

@@ -25,6 +25,8 @@
  * @test
  * @enablePreview
  * @requires ((os.arch == "amd64" | os.arch == "x86_64") & sun.arch.data.model == "64") | os.arch == "aarch64"
+ * @requires !vm.musl
+ *
  * @library /test/lib
  * @build TestEnableNativeAccess
  *        panama_module/*