Revert "cpufreq: fix using cpufreq-dt as module"

This reverts commit 9325895e41 which is
commit f1f010c9d9c62c865d9f54e94075800ba764b4d9 upstream.

It breaks the rockpi build target, as it expects it to be a module, and
the change here (autoloading the code), is not an issue as it does work
properly in Android targets and does not need to be built-in all the
time anymore.

Fixes: 9325895e41 ("cpufreq: fix using cpufreq-dt as module")
Change-Id: Ifd5e1e5e4611b2aae4361302e9d1836a360b0add
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/cpufreq/Kconfig

@@ -239,7 +239,7 @@ config CPUFREQ_VIRT
 	  If in doubt, say N.
 
 config CPUFREQ_DT_PLATDEV
-	bool "Generic DT based cpufreq platdev driver"
+	tristate "Generic DT based cpufreq platdev driver"
 	depends on OF
 	help
 	  This adds a generic DT based cpufreq platdev driver for frequency

drivers/cpufreq/cpufreq-dt-platdev.c

@@ -234,3 +234,5 @@ create_pdev:
 			       sizeof(struct cpufreq_dt_platform_data)));
 }
 core_initcall(cpufreq_dt_platdev_init);
+MODULE_DESCRIPTION("Generic DT based cpufreq platdev driver");
+MODULE_LICENSE("GPL");