cpufreq/amd-pstate: Use sysfs_match_string() for epp

Rather than scanning the buffer and manually matching the string
use the sysfs macros.

Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
This commit is contained in:
Mario Limonciello (AMD) 2025-10-09 11:17:51 -05:00
commit 7e17f48667