xilinx: kconfig: Move sourcing of board Kconfig to mach folders

Do not source xilinx board Kconfig by other boards. These configs should be
available only when Xilinx platforms are selected.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/arm/Kconfig

@@ -1997,10 +1997,6 @@ source "board/tcl/sl50/Kconfig"
 source "board/toradex/colibri_pxa270/Kconfig"
 source "board/variscite/dart_6ul/Kconfig"
 source "board/vscom/baltos/Kconfig"
-source "board/xilinx/Kconfig"
-source "board/xilinx/zynq/Kconfig"
-source "board/xilinx/zynqmp/Kconfig"
-source "board/xilinx/versal/Kconfig"
 source "board/phytium/durian/Kconfig"
 source "board/xen/xenguest_arm64/Kconfig"
 

arch/arm/mach-versal/Kconfig

@@ -62,4 +62,7 @@ config VERSAL_NO_DDR
 	  This option configures MMU with no DDR to avoid speculative
 	  access to DDR memory where DDR is not present.
 
+source "board/xilinx/Kconfig"
+source "board/xilinx/versal/Kconfig"
+
 endif

arch/arm/mach-zynq/Kconfig

@@ -70,4 +70,7 @@ config BOOT_INIT_FILE
 config ZYNQ_SDHCI_MAX_FREQ
 	default 52000000
 
+source "board/xilinx/Kconfig"
+source "board/xilinx/zynq/Kconfig"
+
 endif

arch/arm/mach-zynqmp/Kconfig

@@ -171,4 +171,7 @@ config SD1_LSHFT_MODE
 
 endchoice
 
+source "board/xilinx/Kconfig"
+source "board/xilinx/zynqmp/Kconfig"
+
 endif

configs/xilinx_zynqmp_mini_qspi_defconfig

@@ -8,8 +8,8 @@ CONFIG_ENV_SIZE=0x80
 CONFIG_SPL=y
 CONFIG_SYS_MEM_RSVD_FOR_MMU=y
 CONFIG_ZYNQMP_NO_DDR=y
-# CONFIG_PSCI_RESET is not set
 # CONFIG_CMD_ZYNQMP is not set
+# CONFIG_PSCI_RESET is not set
 CONFIG_DEFAULT_DEVICE_TREE="zynqmp-mini-qspi"
 # CONFIG_EXPERT is not set
 # CONFIG_LEGACY_IMAGE_FORMAT is not set