InstcountCI: Fix bad encoded moffset instructions

These were actually encoded incorrectly, and I noticed they changed in
PR #4670 for some reason. So I dove in to the nasm source to figure out
what it takes to encode these sanely rather than with raw bytes, turns
out it's fairly trivial, just annoying to track in their parser through
iwdq->mem_offset->MEM_OFFS->qword.

Should remove the change in #4670 once it rebases.

unittests/InstructionCountCI/Primary.json

@@ -2803,51 +2803,45 @@
         "bfi x4, x20, #8, #8"
       ]
     },
-    "db 0x48, 0xa1; dq 0x00000000e0000008": {
+    "mov rax, [qword 0xe0000008]": {
       "ExpectedInstructionCount": 3,
       "Comment": [
-        "mov rax, [0xe0000008]",
         "0xa1"
       ],
       "ExpectedArm64ASM": [
-        "mov w20, #0x400",
-        "movk w20, #0xcb, lsl #16",
+        "mov w20, #0x8",
+        "movk w20, #0xe000, lsl #16",
         "ldr x4, [x20]"
       ]
     },
-    "db 0x67, 0xa1; dd 0xe0000000": {
-      "ExpectedInstructionCount": 3,
+    "mov eax, [qword 0xe0000000]": {
+      "ExpectedInstructionCount": 2,
       "Comment": [
-        "mov eax, [0xe0000000]",
         "0xa1"
       ],
       "ExpectedArm64ASM": [
-        "mov w20, #0x400",
-        "movk w20, #0xcb, lsl #16",
+        "mov w20, #0xe0000000",
         "ldr w4, [x20]"
       ]
     },
-    "db 0x48, 0xa3; dq 0x00000000e0000008": {
+    "mov [qword 0xe0000008], rax": {
       "ExpectedInstructionCount": 3,
       "Comment": [
-        "mov [0xe0000008], rax",
         "0xa3"
       ],
       "ExpectedArm64ASM": [
-        "mov w20, #0x400",
-        "movk w20, #0xcb, lsl #16",
+        "mov w20, #0x8",
+        "movk w20, #0xe000, lsl #16",
         "str x4, [x20]"
       ]
     },
-    "db 0x67, 0xa3; dd 0xe0000000": {
-      "ExpectedInstructionCount": 3,
+    "mov [qword 0xe0000000], eax": {
+      "ExpectedInstructionCount": 2,
       "Comment": [
-        "mov [0xe0000000], eax",
         "0xa3"
       ],
       "ExpectedArm64ASM": [
-        "mov w20, #0x400",
-        "movk w20, #0xcb, lsl #16",
+        "mov w20, #0xe0000000",
         "str w4, [x20]"
       ]
     },