[PATCH] riscv: fix build with binutils 2.38

[Linus Torvalds]

On Thu, Mar 31, 2022 at 11:53 PM Marc Kleine-Budde <mkl at pengutronix.de> wrote:
>
> | WARNING: invalid argument to '-march': 'zicsr_zifencei'

Gaah, it works but still warns because I cut-and-pasted those
zicsr/zifencei options from some random source that had them
capitalized and I didn't look closely enough at the reports.

Anyway, hopefully somebody can bother to fix up that. Possibly by
changing the strncmp to a strnicmp - but I don't know what the rules
for lower-case vs capitals are for the other options. I'm still busy
with the kernel merge window, so this gets archived on my side..

             Linus