lib: sbi: Enable Control Transfer Records (CTR) Ext using xstateen.

The Control Transfer Records (CTR) extension provides a method to
record a limited branch history in register-accessible internal chip
storage.

This extension is similar to Arch LBR in x86 and BRBE in ARM.
The Extension has been stable and the latest release can be found here
https://github.com/riscv/riscv-control-transfer-records/release

Signed-off-by: Rajnesh Kanwal <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Anup Patel <[email protected]>

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