Update QSPI flash configuration with DFS settings

Added configuration options for DFS and ELM in QSPI flash.

Author: LinuxMint-User

bsp/stm32/stm32l475-atk-pandora/.ci/attachconfig/qspi-flash.attach

@@ -1,3 +1,24 @@
+CONFIG_RT_USING_DFS=y
+CONFIG_DFS_USING_POSIX=y
+CONFIG_DFS_USING_WORKDIR=y
+CONFIG_DFS_FD_MAX=16
+CONFIG_RT_USING_DFS_V1=y
+CONFIG_DFS_FILESYSTEMS_MAX=4
+CONFIG_DFS_FILESYSTEM_TYPES_MAX=4
+CONFIG_RT_USING_DFS_ELMFAT=y
+CONFIG_RT_DFS_ELM_CODE_PAGE=437
+CONFIG_RT_DFS_ELM_WORD_ACCESS=y
+CONFIG_RT_DFS_ELM_USE_LFN_3=y
+CONFIG_RT_DFS_ELM_USE_LFN=3
+CONFIG_RT_DFS_ELM_LFN_UNICODE_0=y
+CONFIG_RT_DFS_ELM_LFN_UNICODE=0
+CONFIG_RT_DFS_ELM_MAX_LFN=255
+CONFIG_RT_DFS_ELM_DRIVES=2
+CONFIG_RT_DFS_ELM_MAX_SECTOR_SIZE=4096
+CONFIG_RT_DFS_ELM_REENTRANT=y
+CONFIG_RT_DFS_ELM_MUTEX_TIMEOUT=3000
+CONFIG_RT_USING_DFS_DEVFS=y
+
 CONFIG_RT_USING_SPI=y
 CONFIG_RT_USING_SPI_ISR=y
 CONFIG_RT_USING_QSPI=y