configs: sama5d27_som1_ek: Add default config to read ENV from QSPI

In the initial SPI flash setup, the default bus mode being used was 3,
which is incorrect, causing a CRC error when the ENV was being read from
QSPI. Setting the default bus mode to 0 which is the correct mode.
Signed-off-by: NSwapna Gurumani <swapna.gurumani@microchip.com>

configs/sama5d27_som1_ek_qspiflash_defconfig

@@ -47,6 +47,14 @@ CONFIG_DEFAULT_DEVICE_TREE="at91-sama5d27_som1_ek"
 CONFIG_OF_SPL_REMOVE_PROPS="interrupts interrupt-parent dmas dma-names"
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_USE_ENV_SPI_BUS=y
+CONFIG_ENV_SPI_BUS=0
+CONFIG_USE_ENV_SPI_CS=y
+CONFIG_ENV_SPI_CS=0
+CONFIG_USE_ENV_SPI_MAX_HZ=y
+CONFIG_ENV_SPI_MAX_HZ=50000000
+CONFIG_USE_ENV_SPI_MODE=y
+CONFIG_ENV_SPI_MODE=0x0
 CONFIG_DM=y
 CONFIG_SPL_DM=y
 CONFIG_SPL_DM_SEQ_ALIAS=y