Backport of:

commit e9177fba13549a8e2a6232f46080e5c6d3e467b1
Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date:   Wed Jun 21 13:47:07 2017 +0100

    [AArch64] Use hidden __GI__dl_argv in rtld startup code
    
    We rely on the symbol being locally defined so using extern symbol
    is not correct and the linker may complain about the relocations.

Adjusted to the old INTDEF/INTUSE mechanism.

diff --git a/ports/sysdeps/aarch64/dl-machine.h b/ports/sysdeps/aarch64/dl-machine.h
index 0e76ca8f146905ef..40b0587ba42cd59e 100644
--- a/ports/sysdeps/aarch64/dl-machine.h
+++ b/ports/sysdeps/aarch64/dl-machine.h
@@ -169,8 +169,8 @@ _dl_start_user:							\n\
 	cmp	x0, #0						\n\
 	bne	1b						\n\
 	// Update _dl_argv					\n\
-	adrp	x3, _dl_argv					\n\
-	str	x2, [x3, #:lo12:_dl_argv]			\n\
+	adrp	x3, _dl_argv_internal				\n\
+	str	x2, [x3, #:lo12:_dl_argv_internal]		\n\
 .L_done_stack_adjust:						\n\
 	// compute envp						\n\
 	add	x3, x2, x1, lsl #3				\n\