Merge branch '2022-07-07-Kconfig-migrations-dead-code-removal' into next

- Migrate more CONFIG options to Kconfig and remove some unused code
  while we're at it.
diff --git a/configs/lx2160ardb_tfa_SECURE_BOOT_defconfig b/configs/lx2160ardb_tfa_SECURE_BOOT_defconfig
index c340d9d..a758a4d 100644
--- a/configs/lx2160ardb_tfa_SECURE_BOOT_defconfig
+++ b/configs/lx2160ardb_tfa_SECURE_BOOT_defconfig
@@ -8,22 +8,21 @@
 CONFIG_SYS_MALLOC_F_LEN=0x6000
 CONFIG_NR_DRAM_BANKS=3
 CONFIG_ENV_SIZE=0x2000
-CONFIG_NXP_ESBC=y
 CONFIG_DM_GPIO=y
 CONFIG_DEFAULT_DEVICE_TREE="fsl-lx2160a-rdb"
-CONFIG_FSL_USE_PCA9547_MUX=y
-CONFIG_VID=y
-CONFIG_SPL_VID=y
-CONFIG_VID_FLS_ENV="lx2160ardb_vdd_mv"
-CONFIG_VOL_MONITOR_LTC3882_READ=y
-CONFIG_VOL_MONITOR_LTC3882_SET=y
-CONFIG_FSL_QIXIS=y
 CONFIG_EMC2305=y
 CONFIG_FSPI_AHB_EN_4BYTE=y
 CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT=y
 CONFIG_SEC_FIRMWARE_ARMV8_PSCI=y
 CONFIG_AHCI=y
 CONFIG_OF_BOARD_FIXUP=y
+CONFIG_NXP_ESBC=y
+CONFIG_FSL_USE_PCA9547_MUX=y
+CONFIG_VID=y
+CONFIG_VID_FLS_ENV="lx2160ardb_vdd_mv"
+CONFIG_VOL_MONITOR_LTC3882_READ=y
+CONFIG_VOL_MONITOR_LTC3882_SET=y
+CONFIG_FSL_QIXIS=y
 CONFIG_REMAKE_ELF=y
 CONFIG_MP=y
 CONFIG_FIT_VERBOSE=y
@@ -98,6 +97,5 @@
 CONFIG_USB_XHCI_DWC3=y
 CONFIG_USB_MAX_CONTROLLER_COUNT=2
 CONFIG_RSA=y
-CONFIG_SPL_RSA=y
 CONFIG_RSA_SOFTWARE_EXP=y
 CONFIG_EFI_LOADER_BOUNCE_BUFFER=y