scalar-crypto: rc6 update

- Includes VS/VU updates for Zkr

 On branch master
 Your branch is up-to-date with 'origin/master'.

 Changes to be committed:
	modified:   doc/scalar/riscv-crypto-spec-scalar.adoc

doc/scalar/riscv-crypto-spec-scalar.adoc

@@ -2,8 +2,8 @@
 = RISC-V Cryptography Extensions Volume I: Scalar & Entropy Source Instructions
 :description: The scalar cryptography and entropy source extensions for the RISC-V ISA.
 :company: RISC-V.org
-:revdate:  8'th October, 2021
-:revnumber: v1.0.0-rc5
+:revdate:  12'th October, 2021
+:revnumber: v1.0.0-rc6
 :revremark: This document is in the Frozen state. Change is unlikely but possible, with a high threshold for consideration.
 :url-riscv: http://riscv.org
 :doctype: book