patch 8.0.0466: still macros that should be all-caps

Problem:    There are still a few macros that should be all-caps.
Solution:   Make a few more macros all-caps.
diff --git a/src/ui.c b/src/ui.c
index cc1ef18..0bd2edc 100644
--- a/src/ui.c
+++ b/src/ui.c
@@ -496,7 +496,7 @@
 					    || get_real_state() == SELECTMODE)
 		    && (cbd == &clip_star ? clip_isautosel_star()
 						      : clip_isautosel_plus())
-		    && hl_attr(HLF_V) != hl_attr(HLF_VNC))
+		    && HL_ATTR(HLF_V) != HL_ATTR(HLF_VNC))
 		redraw_curbuf_later(INVERTED_ALL);
 	}
     }
@@ -534,7 +534,7 @@
 					    || get_real_state() == SELECTMODE)
 		&& (cbd == &clip_star ?
 				clip_isautosel_star() : clip_isautosel_plus())
-		&& hl_attr(HLF_V) != hl_attr(HLF_VNC))
+		&& HL_ATTR(HLF_V) != HL_ATTR(HLF_VNC))
 	{
 	    update_curbuf(INVERTED_ALL);
 	    setcursor();