[PATCH] perf arch events: Fix duplicate RISC-V SBI firmware event name

[Nikita Shubin]

Hi Eric,

Nice catch!

Shouldn't it fix every patch that copied affected 'firmware.json' by
the way ?

Something like:

Fixes: 8f0dcb4e7364 ("perf arch events: riscv sbi firmware std event
files")
Fixes: c4f769d4093d ("perf vendor events riscv: add Sifive U74 JSON
file")
Fixes: acbf6de674ef ("perf vendor events riscv: Add StarFive Dubhe-80
JSON file")
Fixes: 7340c6df49df ("perf vendor events riscv: add T-HEAD C9xx JSON
file")
Fixes: f5102e31c209 ("riscv: andes: Support specifying symbolic
firmware and hardware raw event")

Reviewed-by: Nikita Shubin <n.shubin at yadro.com>