hwspinlock: enable OMAP build for AM33xx, AM43xx & DRA7xx

HwSpinlocks are supported on TI's AM33xx, AM43xx and DRA7xx SoC
device families as well. The IPs are identical to that of
OMAP4/OMAP5, except for the number of locks.

Add a depends on to the above family of SoCs to enable the
build support for OMAP hwspinlock driver for any of the above
SoC configs.

Signed-off-by: Suman Anna <s-anna@ti.com>
[small commit log changes]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
diff --git a/drivers/hwspinlock/Kconfig b/drivers/hwspinlock/Kconfig
index 70637d2..3612cb5 100644
--- a/drivers/hwspinlock/Kconfig
+++ b/drivers/hwspinlock/Kconfig
@@ -10,7 +10,7 @@
 
 config HWSPINLOCK_OMAP
 	tristate "OMAP Hardware Spinlock device"
-	depends on ARCH_OMAP4 || SOC_OMAP5
+	depends on ARCH_OMAP4 || SOC_OMAP5 || SOC_DRA7XX || SOC_AM33XX || SOC_AM43XX
 	select HWSPINLOCK
 	help
 	  Say y here to support the OMAP Hardware Spinlock device (firstly