HV: include: integral type cleanup

This patch cleans up the integral type violations to MISRA C rules, mostly
related to signed constants that should be unsigned but also spelling out two
integer narrowing and dropping some macros negating unsigned integers.

v1 -> v2:

    * Drop INT_ROUNDUPx macros since they are never used.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>

hypervisor/include/arch/x86/mmu.h

@@ -373,7 +373,7 @@ struct e820_entry {
  */
 static inline void *mmu_pt_for_pde(uint32_t *pd, uint32_t vaddr)
 {
-	return pd + ((vaddr >> 22) + 1) * 1024;
+	return pd + ((vaddr >> 22U) + 1U) * 1024U;
 }
 
 #define CACHE_FLUSH_INVALIDATE_ALL()			\