board: ti: Add dependency from TARGET selection to SOC

Currently the K3 selection for TARGET boards does not depend on the SoC
for which it is based. This leds to the odd ability to select for instance
both SOC_K3_AM625 and TARGET_J721E_A72_EVM.

To fix this the target choice should depend on the matching SOC config.

Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Neha Malcom Francis <n-francis@ti.com>
diff --git a/board/siemens/iot2050/Kconfig b/board/siemens/iot2050/Kconfig
index a6170aa..737cda6 100644
--- a/board/siemens/iot2050/Kconfig
+++ b/board/siemens/iot2050/Kconfig
@@ -8,8 +8,8 @@
 
 config TARGET_IOT2050_A53
 	bool "IOT2050 running on A53"
+	depends on SOC_K3_AM654
 	select ARM64
-	select SOC_K3_AM654
 	select BOARD_LATE_INIT
 	select SYS_DISABLE_DCACHE_OPS
 	select BINMAN
diff --git a/board/ti/am62ax/Kconfig b/board/ti/am62ax/Kconfig
index 61f289f..30e1a06 100644
--- a/board/ti/am62ax/Kconfig
+++ b/board/ti/am62ax/Kconfig
@@ -5,6 +5,7 @@
 
 choice
 	prompt "TI K3 AM62Ax based boards"
+	depends on SOC_K3_AM62A7
 	optional
 
 config TARGET_AM62A7_A53_EVM
diff --git a/board/ti/am62x/Kconfig b/board/ti/am62x/Kconfig
index cd17e93..b4b7033 100644
--- a/board/ti/am62x/Kconfig
+++ b/board/ti/am62x/Kconfig
@@ -5,6 +5,7 @@
 
 choice
 	prompt "TI K3 AM62x based boards"
+	depends on SOC_K3_AM625
 	optional
 
 config TARGET_AM625_A53_EVM
diff --git a/board/ti/am64x/Kconfig b/board/ti/am64x/Kconfig
index fb596e4..2dbc619 100644
--- a/board/ti/am64x/Kconfig
+++ b/board/ti/am64x/Kconfig
@@ -4,6 +4,7 @@
 
 choice
 	prompt "K3 AM64 based boards"
+	depends on SOC_K3_AM642
 	optional
 
 config TARGET_AM642_A53_EVM
diff --git a/board/ti/am65x/Kconfig b/board/ti/am65x/Kconfig
index 78c7040..d5794b3 100644
--- a/board/ti/am65x/Kconfig
+++ b/board/ti/am65x/Kconfig
@@ -5,6 +5,7 @@
 
 choice
 	prompt "K3 AM65 based boards"
+	depends on SOC_K3_AM654
 	optional
 
 config TARGET_AM654_A53_EVM
diff --git a/board/ti/j721e/Kconfig b/board/ti/j721e/Kconfig
index 9505330..df143af 100644
--- a/board/ti/j721e/Kconfig
+++ b/board/ti/j721e/Kconfig
@@ -5,6 +5,7 @@
 
 choice
 	prompt "K3 J721E based boards"
+	depends on SOC_K3_J721E
 	optional
 
 config TARGET_J721E_A72_EVM
diff --git a/board/ti/j721s2/Kconfig b/board/ti/j721s2/Kconfig
index f6d1cb5..a4a5d16 100644
--- a/board/ti/j721s2/Kconfig
+++ b/board/ti/j721s2/Kconfig
@@ -5,6 +5,7 @@
 
 choice
 	prompt "K3 J721S2 board"
+	depends on SOC_K3_J721S2
 	optional
 
 config TARGET_J721S2_A72_EVM
diff --git a/board/toradex/verdin-am62/Kconfig b/board/toradex/verdin-am62/Kconfig
index e752224..abc2984 100644
--- a/board/toradex/verdin-am62/Kconfig
+++ b/board/toradex/verdin-am62/Kconfig
@@ -5,6 +5,7 @@
 
 choice
 	prompt "Toradex Verdin AM62 based boards"
+	depends on SOC_K3_AM625
 	optional
 
 config TARGET_VERDIN_AM62_A53