staging/goldfish: Use %zx for printing size_t variables

When building the driver, gcc emits the following warnings:
.../drivers/staging/goldfish/goldfish_nand.c:
In function 'goldfish_nand_read_oob':
goldfish_nand.c:159:2:
warning: format '%x' expects argument of type 'unsigned int', but
argument 3 has type 'size_t' [-Wformat]
goldfish_nand.c:159:2:
warning: format '%x' expects argument of type 'unsigned int', but
argument 4 has type 'size_t' [-Wformat]

In function 'goldfish_nand_write_oob':
goldfish_nand.c:191:2:
warning: format '%x' expects argument of type 'unsigned int', but
argument 3 has type 'size_t' [-Wformat]
goldfish_nand.c:191:2:
warning: format '%x' expects argument of type 'unsigned int', but
argument 4 has type 'size_t' [-Wformat]

In function 'goldfish_nand_read':
goldfish_nand.c:215:2:
warning: format '%x' expects argument of type 'unsigned int', but
argument 3 has type 'size_t' [-Wformat]

In function 'goldfish_nand_write':
goldfish_nand.c:239:2:
warning: format '%x' expects argument of type 'unsigned int', but
argument 3 has type 'size_t' [-Wformat]

-> As defined in the printk-formats use %zx for size_t variables
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/goldfish/goldfish_nand.c

@@ -156,7 +156,7 @@ static int goldfish_nand_read_oob(struct mtd_info *mtd, loff_t ofs,
 	return 0;
 
 invalid_arg:
-	pr_err("goldfish_nand_read_oob: invalid read, start %llx, len %x, ooblen %x, dev_size %llx, write_size %x\n",
+	pr_err("goldfish_nand_read_oob: invalid read, start %llx, len %zx, ooblen %zx, dev_size %llx, write_size %x\n",
 		ofs, ops->len, ops->ooblen, mtd->size, mtd->writesize);
 	return -EINVAL;
 }
@@ -188,7 +188,7 @@ static int goldfish_nand_write_oob(struct mtd_info *mtd, loff_t ofs,
 	return 0;
 
 invalid_arg:
-	pr_err("goldfish_nand_write_oob: invalid write, start %llx, len %x, ooblen %x, dev_size %llx, write_size %x\n",
+	pr_err("goldfish_nand_write_oob: invalid write, start %llx, len %zx, ooblen %zx, dev_size %llx, write_size %x\n",
 		ofs, ops->len, ops->ooblen, mtd->size, mtd->writesize);
 	return -EINVAL;
 }
@@ -212,7 +212,7 @@ static int goldfish_nand_read(struct mtd_info *mtd, loff_t from, size_t len,
 	return 0;
 
 invalid_arg:
-	pr_err("goldfish_nand_read: invalid read, start %llx, len %x, dev_size %llx, write_size %x\n",
+	pr_err("goldfish_nand_read: invalid read, start %llx, len %zx, dev_size %llx, write_size %x\n",
 		from, len, mtd->size, mtd->writesize);
 	return -EINVAL;
 }
@@ -236,7 +236,7 @@ static int goldfish_nand_write(struct mtd_info *mtd, loff_t to, size_t len,
 	return 0;
 
 invalid_arg:
-	pr_err("goldfish_nand_write: invalid write, start %llx, len %x, dev_size %llx, write_size %x\n",
+	pr_err("goldfish_nand_write: invalid write, start %llx, len %zx, dev_size %llx, write_size %x\n",
 		to, len, mtd->size, mtd->writesize);
 	return -EINVAL;
 }