mtd: Rename free() to rfree()

This function name conflicts with our desire to #define free() to
something else on sandbox. Since it deals with resources, rename it to
rfree().

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c
index cb8ffa3..fba8cc0 100644
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -1021,7 +1021,7 @@
 
 static const struct mtd_ooblayout_ops spinand_noecc_ooblayout = {
 	.ecc = spinand_noecc_ooblayout_ecc,
-	.free = spinand_noecc_ooblayout_free,
+	.rfree = spinand_noecc_ooblayout_free,
 };
 
 static int spinand_init(struct spinand_device *spinand)
diff --git a/drivers/mtd/nand/spi/gigadevice.c b/drivers/mtd/nand/spi/gigadevice.c
index 3681c5e..e329c3c 100644
--- a/drivers/mtd/nand/spi/gigadevice.c
+++ b/drivers/mtd/nand/spi/gigadevice.c
@@ -103,7 +103,7 @@
 
 static const struct mtd_ooblayout_ops gd5fxgq4xexxg_ooblayout = {
 	.ecc = gd5fxgq4xexxg_ooblayout_ecc,
-	.free = gd5fxgq4xexxg_ooblayout_free,
+	.rfree = gd5fxgq4xexxg_ooblayout_free,
 };
 
 static const struct spinand_info gigadevice_spinand_table[] = {
diff --git a/drivers/mtd/nand/spi/macronix.c b/drivers/mtd/nand/spi/macronix.c
index 662c561..1119677 100644
--- a/drivers/mtd/nand/spi/macronix.c
+++ b/drivers/mtd/nand/spi/macronix.c
@@ -47,7 +47,7 @@
 
 static const struct mtd_ooblayout_ops mx35lfxge4ab_ooblayout = {
 	.ecc = mx35lfxge4ab_ooblayout_ecc,
-	.free = mx35lfxge4ab_ooblayout_free,
+	.rfree = mx35lfxge4ab_ooblayout_free,
 };
 
 static int mx35lf1ge4ab_get_eccsr(struct spinand_device *spinand, u8 *eccsr)
diff --git a/drivers/mtd/nand/spi/micron.c b/drivers/mtd/nand/spi/micron.c
index 83951c5..9c24542 100644
--- a/drivers/mtd/nand/spi/micron.c
+++ b/drivers/mtd/nand/spi/micron.c
@@ -63,7 +63,7 @@
 
 static const struct mtd_ooblayout_ops mt29f2g01abagd_ooblayout = {
 	.ecc = mt29f2g01abagd_ooblayout_ecc,
-	.free = mt29f2g01abagd_ooblayout_free,
+	.rfree = mt29f2g01abagd_ooblayout_free,
 };
 
 static int mt29f2g01abagd_ecc_get_status(struct spinand_device *spinand,
diff --git a/drivers/mtd/nand/spi/winbond.c b/drivers/mtd/nand/spi/winbond.c
index 6ba8bc5..de9352e 100644
--- a/drivers/mtd/nand/spi/winbond.c
+++ b/drivers/mtd/nand/spi/winbond.c
@@ -59,7 +59,7 @@
 
 static const struct mtd_ooblayout_ops w25m02gv_ooblayout = {
 	.ecc = w25m02gv_ooblayout_ecc,
-	.free = w25m02gv_ooblayout_free,
+	.rfree = w25m02gv_ooblayout_free,
 };
 
 static int w25m02gv_select_target(struct spinand_device *spinand,