board: phytec: Make AM6 SoM detection depend on I2C

SoM detection is using I2C driver model functions.
Let's depend on I2C.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Tested-by: John Ma <jma@phytec.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
diff --git a/board/phytec/common/Kconfig b/board/phytec/common/Kconfig
index 1077f0f..56c8290 100644
--- a/board/phytec/common/Kconfig
+++ b/board/phytec/common/Kconfig
@@ -16,6 +16,7 @@
 	bool "Support SoM detection for AM62x PHYTEC platforms"
 	depends on (TARGET_PHYCORE_AM62X_A53 || TARGET_PHYCORE_AM62X_R5) && \
 		   PHYTEC_SOM_DETECTION
+	depends on SPL_I2C && DM_I2C
 	default y
 	help
 	   Support of I2C EEPROM based SoM detection. Supported
@@ -25,6 +26,7 @@
 	bool "Support SoM detection for AM64x PHYTEC platforms"
 	depends on (TARGET_PHYCORE_AM64X_A53 || TARGET_PHYCORE_AM64X_R5) && \
 		   PHYTEC_SOM_DETECTION
+	depends on SPL_I2C && DM_I2C
 	default y
 	help
 	   Support of I2C EEPROM based SoM detection. Supported