AM4372 uses PL310 L2 Cache. Enable the configs for the same.
Signed-off-by: NLokesh Vutla <lokeshvutla@ti.com>

Use ti_armv7_common.h config file to inclde the common
configs.
Signed-off-by: NLokesh Vutla <lokeshvutla@ti.com>

Remove platform CONFIG_SYS_HZ definition for configs a-z*.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>

Add the support for the am437x xhci usb host.

The xHCI host on AM437 is connected to a usb2 phy so need to
add support to enable those clocks.
Signed-off-by: NDan Murphy <dmurphy@ti.com>

Add config file
Signed-off-by: NLokesh Vutla <lokeshvutla@ti.com>