x86/p2m: Add braces for better code clarity

No functional change.

Signed-off-by: Petr Beneš <w1benny@gmail.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>

xen/arch/x86/mm/p2m.c

@@ -106,6 +106,7 @@ void p2m_change_entry_type_global(struct domain *d,
         unsigned int i;
 
         for ( i = 0; i < MAX_ALTP2M; i++ )
+        {
             if ( d->arch.altp2m_eptp[i] != mfn_x(INVALID_MFN) )
             {
                 struct p2m_domain *altp2m = d->arch.altp2m_p2m[i];
@@ -114,6 +115,7 @@ void p2m_change_entry_type_global(struct domain *d,
                 change_entry_type_global(altp2m, ot, nt);
                 p2m_unlock(altp2m);
             }
+        }
     }
 
     p2m_unlock(hostp2m);
@@ -139,6 +141,7 @@ void p2m_memory_type_changed(struct domain *d)
         unsigned int i;
 
         for ( i = 0; i < MAX_ALTP2M; i++ )
+        {
             if ( d->arch.altp2m_eptp[i] != mfn_x(INVALID_MFN) )
             {
                 struct p2m_domain *altp2m = d->arch.altp2m_p2m[i];
@@ -147,6 +150,7 @@ void p2m_memory_type_changed(struct domain *d)
                 _memory_type_changed(altp2m);
                 p2m_unlock(altp2m);
             }
+        }
     }
 
     p2m_unlock(hostp2m);