arm: mach-k3: introduce generic board detction kconfig option

For non TI boards it is not possible to enable the do_board_detect()
call as TI_I2C_BOARD_DETECT is defined in board/ti/common/Kconfig.

I want to use do_board_detect() to dectect boards and properties based
on some SPI communication with a FPGA.

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/mach-k3/am654_init.c b/arch/arm/mach-k3/am654_init.c
index 768fdd6..70059ed 100644
--- a/arch/arm/mach-k3/am654_init.c
+++ b/arch/arm/mach-k3/am654_init.c
@@ -245,8 +245,7 @@
 	/* Output System Firmware version info */
 	k3_sysfw_print_ver();
 
-	/* Perform EEPROM-based board detection */
-	if (IS_ENABLED(CONFIG_TI_I2C_BOARD_DETECT))
+	if (IS_ENABLED(CONFIG_K3_BOARD_DETECT))
 		do_board_detect();
 
 #if defined(CONFIG_CPU_V7R) && defined(CONFIG_K3_AVS0)