mtd: spi-nor: add SNOR_ID() and SNOR_OTP()

After all the preparation, it is now time to introduce the new macros to
specify flashes in our database: SNOR_ID() and SNOR_OTP(). An flash_info
entry might now look like:
    {
        .id = SNOR_ID(0xef, 0x60, 0x16),
        .otp = SNOR_OTP(256, 3, 0x1000, 0x1000),
        .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB,
    }

Signed-off-by: Michael Walle <mwalle@kernel.org>
Link: https://lore.kernel.org/r/20230807-mtd-flash-info-db-rework-v3-15-e60548861b10@kernel.org
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>

Author: mwalle

drivers/mtd/spi-nor/core.h

@@ -561,6 +561,20 @@ struct flash_info {
 	const struct spi_nor_fixups *fixups;
 };
 
+#define SNOR_ID(...)							\
+	(&(const struct spi_nor_id){					\
+		.bytes = (const u8[]){ __VA_ARGS__ },			\
+		.len = sizeof((u8[]){ __VA_ARGS__ }),			\
+	})
+
+#define SNOR_OTP(_len, _n_regions, _base, _offset)			\
+	(&(const struct spi_nor_otp_organization){			\
+		.len = (_len),						\
+		.base = (_base),					\
+		.offset = (_offset),					\
+		.n_regions = (_n_regions),				\
+	})
+
 #define SPI_NOR_ID_2ITEMS(_id) ((_id) >> 8) & 0xff, (_id) & 0xff
 #define SPI_NOR_ID_3ITEMS(_id) ((_id) >> 16) & 0xff, SPI_NOR_ID_2ITEMS(_id)