add view updates for account SLEs (#4629)

Signed-off-by: Manoj Doshi <mdoshi@ripple.com>

src/ripple/app/tx/impl/SetAccount.cpp

@@ -699,6 +699,7 @@ SetAccount::doApply()
             sle->setFieldU16(sfHookStateScale, newScale);
         }
     }
+    ctx_.view().update(sle);
 
     return tesSUCCESS;
 }

src/ripple/app/tx/impl/SetRegularKey.cpp

@@ -96,6 +96,8 @@ SetRegularKey::doApply()
         sle->makeFieldAbsent(sfRegularKey);
     }
 
+    ctx_.view().update(sle);
+
     return tesSUCCESS;
 }