cpufreq: amd-pstate: Make amd-pstate EPP driver name hyphenated

amd-pstate passive mode driver is hyphenated. So make amd-pstate active
mode driver consistent with that rename "amd_pstate_epp" to
"amd-pstate-epp".

Fixes: ffa5096 ("cpufreq: amd-pstate: implement Pstate EPP support for the AMD processors")
Cc: All applicable <[email protected]>
Reviewed-by: Gautham R. Shenoy <[email protected]>
Signed-off-by: Wyes Karny <[email protected]>
Acked-by: Huang Rui <[email protected]>
Reviewed-by: Perry Yuan <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>

Author: wkarny

drivers/cpufreq/amd-pstate.c

@@ -1382,7 +1382,7 @@ static struct cpufreq_driver amd_pstate_epp_driver = {
 	.online		= amd_pstate_epp_cpu_online,
 	.suspend	= amd_pstate_epp_suspend,
 	.resume		= amd_pstate_epp_resume,
-	.name		= "amd_pstate_epp",
+	.name		= "amd-pstate-epp",
 	.attr		= amd_pstate_epp_attr,
 };