Fix the manifest when requiredSplitTypes presents

The attribute isSplitRequired should be also true, when the attribute
requiredSplitTypes is true. Add an auto generation function to inject
it.

Bug: 189882156
Test: manually check if the attriubte is correctly generated.

Change-Id: I3a4f3bc68a4582f46f0c1c0394128485be29920a
1 file changed