OvmfPkg/Xen: use lower case x in hex immediate value

The Clang assembler for AArch64 chokes on the value 0XEA1 since it
expects the 0x prefix to use a lower case x.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18204 6f19259b-4bc3-4df7-8a09-765794883524
diff --git a/OvmfPkg/Include/IndustryStandard/Xen/arch-arm/xen.h b/OvmfPkg/Include/IndustryStandard/Xen/arch-arm/xen.h
index 655a221..625a0fc 100644
--- a/OvmfPkg/Include/IndustryStandard/Xen/arch-arm/xen.h
+++ b/OvmfPkg/Include/IndustryStandard/Xen/arch-arm/xen.h
@@ -168,7 +168,7 @@
  *   at Documentation/devicetree/bindings/arm/xen.txt.

  */

 

-#define XEN_HYPERCALL_TAG   0XEA1

+#define XEN_HYPERCALL_TAG   0xEA1

 

 #define uint64_aligned_t UINT64 __attribute__((aligned(8)))