media: media/pci: fix spelling typo of frimware

frimware -> firmware
Signed-off-by: dingsenjie <dingsenjie@yulong.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/pci/saa7164/saa7164.h

@@ -24,7 +24,7 @@
 	saa7164_bus..() : Manage a read/write memory ring buffer in the
 		|	: PCIe Address space.
 		|
-		|		saa7164_fw...()	: Load any frimware
+		|		saa7164_fw...()	: Load any firmware
 		|			|	: direct into the device
 		V			V
 	<- ----------------- PCIe address space -------------------- ->