cpupower: Add support for parsing 'enabled' or 'disabled' strings from table

When cpufreq_get_sysfs_value_from_table() is passed a table with
kernel strings that report 'enabled' or 'disabled' it always returns 0
because these can't cleanly convert to integers.

Explicitly look for enabled or disabled strings from the kernel to handle
this.

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mario Limonciello <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>

Author: superm1

tools/power/cpupower/lib/cpufreq.c

@@ -102,6 +102,10 @@ unsigned long cpufreq_get_sysfs_value_from_table(unsigned int cpu,
 	if (len == 0)
 		return 0;
 
+	if (!strcmp(linebuf, "enabled\n"))
+		return 1;
+	if (!strcmp(linebuf, "disabled\n"))
+		return 0;
 	value = strtoul(linebuf, &endp, 0);
 
 	if (endp == linebuf || errno == ERANGE)