hv: mod: do not use explicit arch name when including headers

Instead of "#include <x86/foo.h>", use "#include <asm/foo.h>".

In other words, we are adopting the same practice in Linux kernel.

Tracked-On: #5920
Signed-off-by: Liang Yi <yi.liang@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>

hypervisor/include/arch/x86/asm/init.h

@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) <2018> Intel Corporation
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef INIT_H
+#define INIT_H
+
+/* hypervisor stack bottom magic('intl') */
+#define SP_BOTTOM_MAGIC    0x696e746cUL
+
+void init_primary_pcpu(void);
+void init_secondary_pcpu(void);
+
+#endif /* INIT_H*/