Update vhdl.json

[sandervanthul]

fix snippets

[Schottkyc137]

I think the intention behind having the trailing semicolon is that you usually have more signals than clk and rst and the cursor will be placed on the next line; so in most cases you would want the trailing semicolon. Do you have a use-case for your change?

[sandervanthul]

ah i see, that makes sense. My use case involve simple ports with only 1 input and output. Ill close this one, assuming that my use case is idiosyncratic.