Merge "Enable -Wsizeof-array-div for 3P code." into main

	noOverrideExternalGlobalCflags = []string{

		// http://b/191699019

		"-Wno-format-insufficient-args",

		// http://b/296422292

		// Usually signals a mistake and should be a hard error.

		"-Wno-sizeof-array-div",

		// http://b/296321145

		// Indicates potential memory or stack corruption, so should be changed

		// to a hard error. Currently triggered by some vendor code.