Use int 80h instead of __kernel_vsyscall in x86 relinterp

The x86 syscall wrappers use __kernel_vsyscall via a field in the TLS
data unless SYSCALL_NO_TLS is defined.  The TLS data is not initialized
when relinterp runs, so define SYSCALL_NO_TLS to perform syscalls via
int 80h.

Test: out/host/linux-x86/testcases/nanoapp_chqts_shared_tests/x86/nanoapp_chqts_shared_tests
Change-Id: I94cd42b27131ab02292fef8402d322def6e8b164
1 file changed