[AArch64] Commit missing testcases

ld/testsuite/ld-aarch64/farcall-b-defsym.d

@@ -0,0 +1,18 @@
+#name: aarch64-farcall-b-defsym
+#source: farcall-b-defsym.s
+#as:
+#ld: -Ttext 0x1000 --defsym=bar=0x8001000
+#objdump: -dr
+#...
+
+Disassembly of section .text:
+
+0000000000001000 <_start>:
+ +1000:	14000003 	b	100c <__bar_veneer>
+ +1004:	d65f03c0 	ret
+[ \t]+1008:[ \t]+14000007[ \t]+b[ \t]+1024 <__bar_veneer\+0x18>
+000000000000100c <__bar_veneer>:
+    100c:	90040010 	adrp	x16, 8001000 <bar>
+    1010:	91000210 	add	x16, x16, #0x0
+    1014:	d61f0200 	br	x16
+	...

ld/testsuite/ld-aarch64/farcall-b-defsym.s

@@ -0,0 +1,10 @@
+	.global _start
+	.global bar
+
+# We will place the section .text at 0x1000.
+
+	.text
+
+_start:
+	b bar
+	ret

ld/testsuite/ld-aarch64/farcall-bl-defsym.d

@@ -0,0 +1,18 @@
+#name: aarch64-farcall-bl-defsym
+#source: farcall-bl-defsym.s
+#as:
+#ld: -Ttext 0x1000 --defsym=bar=0x8001000
+#objdump: -dr
+#...
+
+Disassembly of section .text:
+
+0000000000001000 <_start>:
+ +1000:	94000003 	bl	100c <__bar_veneer>
+ +1004:	d65f03c0 	ret
+[ \t]+1008:[ \t]+14000007[ \t]+b[ \t]+1024 <__bar_veneer\+0x18>
+000000000000100c <__bar_veneer>:
+    100c:	90040010 	adrp	x16, 8001000 <bar>
+    1010:	91000210 	add	x16, x16, #0x0
+    1014:	d61f0200 	br	x16
+	...

ld/testsuite/ld-aarch64/farcall-bl-defsym.s

@@ -0,0 +1,10 @@
+	.global _start
+	.global bar
+
+# We will place the section .text at 0x1000.
+
+	.text
+
+_start:
+	bl bar
+	ret