in {repo.}/“p4-spec/p4-16/P4-16-spec.mdk”: in the subsection “Parser Value Sets” [12.11 in v1.2.2], fixed 1 one-char. grammaro/typo

Author: Abe149

p4-16/spec/P4-16-spec.mdk

@@ -6285,7 +6285,7 @@ storing `N` value set entries. See "Size property of P4 tables and parser value
 sets" [P4SizeProperty] for further discussion on the implementation of parser
 value set size.
 
-The value set is populated by the control-plane by methods specified in the
+The value set is populated by the control plane by methods specified in the
 P4Runtime specification.
 
 # Control blocks { #sec-control }