User Manual RVFI intr description table is incorrect

[silabs-mateilga]

Table 27 in the User Manual has "intr" and "interrupt" signals mixed up in the first two rows. In addition, "intr", "exception" and "interrupt" is indicated as "Don't care"(X) in the debug columns, when they are used to indicate if the instruction halted by debug entry was the first instruction in a trap handler.

Component

**Component:Doc **: User Manual

[Silabs-ArjanB]

The X did not mean don't care. It meant that any value is possible thereby allowing interrupt + debug combinations. Added additional note for this and changed X into - for some cases.

[Silabs-ArjanB]

Should be fixed with #592