sh: pfc: Prefer DRV_NAME over KBUILD_MODNAME.
sh: pfc: Prefer DRV_NAME over KBUILD_MODNAME.

While this code is still being shuffled around the KBUILD_MODNAME value
isn't particularly useful, switch to something a bit more useful.

Signed-off-by: Paul Mundt <38b52dbb5f0b63d149982b6c5de788ec93a89032@linux-sh.org>

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