board: ti: common: Kconfig: add CMD_CACHE

Add CMD_CACHE to list of configs implied by TI_COMMON_CMD_OPTIONS.
This allows the usage of cache commands from U-Boot prompt.

Signed-off-by: Anshul Dalal <anshuld@ti.com>
Reviewed-by: Daniel Schultz <d.schultz@phytec.de>
diff --git a/board/ti/common/Kconfig b/board/ti/common/Kconfig
index b5978ac..2de4212 100644
--- a/board/ti/common/Kconfig
+++ b/board/ti/common/Kconfig
@@ -26,6 +26,7 @@
 	bool "Enable cmd options on TI platforms"
 	imply CMD_ASKENV
 	imply CMD_BOOTZ
+	imply CMD_CACHE
 	imply CRC32_VERIFY if ARCH_KEYSTONE
 	imply CMD_DFU if USB_GADGET_DOWNLOAD
 	imply CMD_DHCP