drm/xe/hwmon: Fix WRITE_I1 param from u32 to u16

drm/xe/hwmon: Fix WRITE_I1 param from u32 to u16

WRITE_I1 sub-command of the POWER_SETUP pcode command accepts a u16
parameter instead of u32. This change prevents potential illegal
sub-command errors.

v2: Mask uval instead of changing the prototype. (Badal)

v3: Rephrase commit message. (Badal)

Signed-off-by: Karthik Poosa <[email protected]>
Fixes: 92d44a422d0d ("drm/xe/hwmon: Expose card reactive critical power")
Reviewed-by: Badal Nilawar <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Rodrigo Vivi <[email protected]>