Blind fix for Linux aarch64 with libcxxabi

...after untested a7d1fed245 "Hack to dynamically
adapt to __cxa_exceptiom in LLVM 5.0 libcxxabi" had been submitted

Change-Id: I68694645825ddebb249a90d9af9b8ba04c0bdbb2
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/88519
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

bridges/source/cpp_uno/gcc3_linux_aarch64/abi.cxx

@@ -153,8 +153,8 @@ extern "C" void _GLIBCXX_CDTOR_CALLABI deleteException(void * exception) {
     // unaffected, as it only accesses members towards the start of the struct,
     // through a pointer known to actually point at the start):
     if (header->exceptionDestructor != &deleteException) {
-        header = reinterpret_cast<__cxa_exception const *>(
-            reinterpret_cast<char const *>(header) - 8);
+        header = reinterpret_cast<__cxxabiv1::__cxa_exception *>(
+            reinterpret_cast<char *>(header) - 8);
         assert(header->exceptionDestructor == &deleteException);
     }
 #endif