media: cx88: make const arrays default_addr_list and pvr2000_addr_list static

Don't populate arrays default_addr_list and pvr2000_addr_list on the
stack but instead make them static. Makes the object code smaller by
over 340 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  12520	   2800	     64	  15384	   3c18	drivers/media/pci/cx88/cx88-input.o

After:
   text	   data	    bss	    dec	    hex	filename
  12142	   2832	     64	  15038	   3abe	drivers/media/pci/cx88/cx88-input.o

(gcc version 7.2.0 x86_64)
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/pci/cx88/cx88-input.c

@@ -593,11 +593,11 @@ static int get_key_pvr2000(struct IR_i2c *ir, enum rc_proto *protocol,
 void cx88_i2c_init_ir(struct cx88_core *core)
 {
 	struct i2c_board_info info;
-	const unsigned short default_addr_list[] = {
+	static const unsigned short default_addr_list[] = {
 		0x18, 0x6b, 0x71,
 		I2C_CLIENT_END
 	};
-	const unsigned short pvr2000_addr_list[] = {
+	static const unsigned short pvr2000_addr_list[] = {
 		0x18, 0x1a,
 		I2C_CLIENT_END
 	};