extcon: kernel_doc style fix
extcon: kernel_doc style fix

Corrected kernel_doc entries.

Signed-off-by: MyungJoo Ham <84146178f7c201fa3079bfc93fccba71d81dffe3@samsung.com>

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