drivers: spi_flash: Addressing mode change for SPI NOR

As 4-byte addressing mode is not support in coreboot, change the
addressing mode of SPI NOR from 4-bytes to 3-bytes.

BUG=b:215605946
TEST=Validated on qualcomm sc7280 development board

Signed-off-by: Veerabhadrarao Badiganti <quic_vbadigan@quicinc.com>
Signed-off-by: Shaik Sajida Bhanu <quic_c_sbhanu@quicinc.com>
Change-Id: Ied5b647d0fcc8e3effff3bb7c8680ed5a0c1f3d4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50586
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Shelley Chen <shchen@google.com>

src/drivers/spi/spi_flash_internal.h

@@ -22,6 +22,8 @@
 
 #define CMD_BLOCK_ERASE			0xD8
 
+#define CMD_EXIT_4BYTE_ADDR_MODE	0xe9
+
 /* Common status */
 #define STATUS_WIP			0x01