[PATCH v3] RISC-V: Support MIPS extensions: xmipscbop, xmipscmov, xmipsexectl, and xmipslsp

[Jovan Dmitrovic]

Hello,

I have noticed some inaccuracies with version 3 of this patch concerning 
the riscv_supported_vendor_x_ext array. The major and minor numbers 
should be those of the extension itself, not the spec version they were 
introduced in.

Changes to this, along with spec update will be present in the v4 I will 
send out shortly after this mail.

Regards,

Jovan