Input: wistron - fix test for CONFIG_PM
Input: wistron - fix test for CONFIG_PM

This should fix the following compile warning:

drivers/input/misc/wistron_btns.c:1331:5: warning: "CONFIG_PM" is not defined

Signed-off-by: Rakib Mullick <2f7339c94289206631ea987457c76ccb2aafd26d@gmail.com>
Signed-off-by: Dmitry Torokhov <10a8c465cefc9bdd6c925e26964d23c90f1141cc@mail.ru>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas