mtd: spi-nor-core: Make CFRx reg fields generic

Cypress defines two flavors of configuration registers, volatile and
non volatile, and both use the same bit fields. Rename the bitfields in
the configuration registers so that they can be used for both flavors.

Suggested-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index 2fb4595..605cdde 100644
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -189,15 +189,15 @@
 #define SPINOR_OP_WR_ANY_REG			0x71	/* Write any register */
 #define SPINOR_OP_S28_SE_4K			0x21
 #define SPINOR_REG_CYPRESS_CFR2V		0x00800003
-#define SPINOR_REG_CYPRESS_CFR2V_MEMLAT_11_24	0xb
+#define SPINOR_REG_CYPRESS_CFR2_MEMLAT_11_24	0xb
 #define SPINOR_REG_CYPRESS_CFR3V		0x00800004
-#define SPINOR_REG_CYPRESS_CFR3V_PGSZ		BIT(4) /* Page size. */
-#define SPINOR_REG_CYPRESS_CFR3V_UNISECT	BIT(3) /* Uniform sector mode */
+#define SPINOR_REG_CYPRESS_CFR3_PGSZ		BIT(4) /* Page size. */
+#define SPINOR_REG_CYPRESS_CFR3_UNISECT		BIT(3) /* Uniform sector mode */
 #define SPINOR_REG_CYPRESS_CFR5V		0x00800006
 #define SPINOR_REG_CYPRESS_CFR5_BIT6		BIT(6)
 #define SPINOR_REG_CYPRESS_CFR5_DDR		BIT(1)
 #define SPINOR_REG_CYPRESS_CFR5_OPI		BIT(0)
-#define SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_EN				\
+#define SPINOR_REG_CYPRESS_CFR5_OCT_DTR_EN				\
 	(SPINOR_REG_CYPRESS_CFR5_BIT6 |	SPINOR_REG_CYPRESS_CFR5_DDR |	\
 	 SPINOR_REG_CYPRESS_CFR5_OPI)
 #define SPINOR_OP_CYPRESS_RD_FAST		0xee