[x86/Linux] changed to the AT&T syntax to solve a problem related bro…

…ken stack. (dotnet#10932)

This is a problem similar to dotnet#10383.

Signed-off-by: ragmani <ragmani0216@gmail.com>

src/vm/i386/asmhelpers.S

@@ -752,8 +752,10 @@ NESTED_ENTRY StubDispatchFixupStub, _TEXT, NoHandler
 
     mov         esi, esp
 
-    push        0
-    push        0
+.att_syntax
+    pushl       $0
+    pushl       $0
+.intel_syntax noprefix
 
     push        eax             // siteAddrForRegisterIndirect (for tailcalls)
     push        esi             // pTransitionBlock
@@ -784,8 +786,10 @@ NESTED_ENTRY ExternalMethodFixupStub, _TEXT_ NoHandler
     // EAX is return address into CORCOMPILE_EXTERNAL_METHOD_THUNK. Subtract 5 to get start address.
     sub         eax, 5
 
-    push        0
-    push        0
+.att_syntax
+    pushl       $0
+    pushl       $0
+.intel_syntax noprefix
 
     push        eax