fix(data): Switch vsetivli rd to xd (#738)

Fix bug introduced in #638

Signed-off-by: Afonso Oliveira <Afonso.Oliveira@synopsys.com>

Author: AFOliveira

arch/inst/V/vsetivli.yaml

@@ -7,7 +7,7 @@ long_name: No synopsis available
 description: |
   No description available.
 definedBy: V
-assembly: rd, uimm, vtypei
+assembly: xd, uimm, vtypei
 encoding:
   match: 11---------------111-----1010111
   variables: