CA-162410: Define IDRSA_KEYLENGTH as a string
CA-162410: Define IDRSA_KEYLENGTH as a string

This completes 9ac7b4c. We can only pass strings into execve.

Signed-off-by: Robert Breker <bfcd7039ca4b92386f0756a1d5e67ea4ff23cfe0@citrix.com>

olivierlambert/xscontainer,xenserver/xscontainer,robertbreker/xscontainer,olivierlambert/xscontainer,xenserver/xscontainer,robertbreker/xscontainer