AIX builds broken from jdk-26+16 onwards

11:11:38 /home/jenkins/workspace/build-scripts/jobs/jdk/jdk-aix-ppc64-temurin/workspace/build/src/src/hotspot/share/utilities/forbiddenFunctions.hpp:78:34: error: exception specification in declaration does not match previous declaration
11:11:38 FORBID_IMPORTED_C_FUNCTION(void* calloc(size_t nmemb, size_t size), noexcept, "use os::malloc and zero out manually");
11:11:38 ^
11:11:38 /usr/include/stdlib.h:754:16: note: expanded from macro 'calloc'
11:11:38 #define calloc vec_calloc
11:11:38 ^
11:11:38 /usr/include/stdlib.h:744:14: note: previous declaration is here
11:11:38 extern void *vec_calloc(size_t, size_t);
11:11:38 ^
11:11:39 2 errors generated.

Likely introduced by JDK-8367282.