Fix build of pcm_native.c

Need a fix for old kernels without vm_iomap_memory(), which was added
recently in the upstream commit 0fe09a45c4848b5b5607b968d959fdc1821c161d.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Update usb patch files

... for the removal of URB_ISO_ASAP for 3.8+ kernels, the upstream
commit c75c5ab575af7db707689cdbb5a5c458e9a034bb.

Signed-off-by: Takashi Iwai <tiwai@suse.de>