cpufreq: powerpc: add missing MODULE_DESCRIPTION() macros

With ARCH=powerpc, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/cpufreq/ppc-cbe-cpufreq.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/cpufreq/powernv-cpufreq.o

Add the missing invocation of the MODULE_DESCRIPTION() macro to all
files which have a MODULE_LICENSE().

This includes three additional files which, although they did not
produce a warning with the powerpc allmodconfig configuration, may
cause this warning with specific options enabled in the kernel
configuration.

Signed-off-by: Jeff Johnson <[email protected]>
Acked-by: Michael Ellerman <[email protected]> (powerpc)
Acked-by: Viresh Kumar <[email protected]>
Link: https://patch.msgid.link/20240722-md-powerpc-drivers-cpufreq-v2-1-bb84d715eb3d@quicinc.com
Signed-off-by: Rafael J. Wysocki <[email protected]>

Author: Jeff Johnson

drivers/cpufreq/maple-cpufreq.c

@@ -238,4 +238,5 @@ static int __init maple_cpufreq_init(void)
 module_init(maple_cpufreq_init);
 
 
+MODULE_DESCRIPTION("cpufreq driver for Maple 970FX/970MP boards");
 MODULE_LICENSE("GPL");

drivers/cpufreq/pasemi-cpufreq.c

@@ -269,5 +269,6 @@ static void __exit pas_cpufreq_exit(void)
 module_init(pas_cpufreq_init);
 module_exit(pas_cpufreq_exit);
 
+MODULE_DESCRIPTION("cpufreq driver for PA Semi PWRficient");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Egor Martovetsky <[email protected]>, Olof Johansson <[email protected]>");

drivers/cpufreq/pmac64-cpufreq.c

@@ -671,4 +671,5 @@ static int __init g5_cpufreq_init(void)
 module_init(g5_cpufreq_init);
 
 
+MODULE_DESCRIPTION("cpufreq driver for SMU & 970FX based G5 Macs");
 MODULE_LICENSE("GPL");

drivers/cpufreq/powernv-cpufreq.c

@@ -1160,5 +1160,6 @@ static void __exit powernv_cpufreq_exit(void)
 }
 module_exit(powernv_cpufreq_exit);
 
+MODULE_DESCRIPTION("cpufreq driver for IBM/OpenPOWER powernv systems");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Vaidyanathan Srinivasan <svaidy at linux.vnet.ibm.com>");

drivers/cpufreq/ppc_cbe_cpufreq.c

@@ -168,5 +168,6 @@ static void __exit cbe_cpufreq_exit(void)
 module_init(cbe_cpufreq_init);
 module_exit(cbe_cpufreq_exit);
 
+MODULE_DESCRIPTION("cpufreq driver for Cell BE processors");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Christian Krafft <[email protected]>");