hawkboard: Replace HAWKBOARD_KICK{0, 1}_UNLOCK defines

This patch replaces the HAWKBOARD_KICK{0,1}_UNLOCK defines by
DV_SYSCFG_KICK{0,1}_UNLOCK.

The kick register values are not hawkboard specific but may be used
for all davinci boards. In commit f3c149d6c6e5ba8dd72baa86fe527837e4fb0e9a
new defines for these values wer introduced.

Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Cc: Syed Mohammed Khasim <sm.khasim@gmail.com>
Cc: Sughosh Ganu <urwithsughosh@gmail.com>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
diff --git a/board/davinci/da8xxevm/hawkboard_nand_spl.c b/board/davinci/da8xxevm/hawkboard_nand_spl.c
index e5e65e5..32b17ce 100644
--- a/board/davinci/da8xxevm/hawkboard_nand_spl.c
+++ b/board/davinci/da8xxevm/hawkboard_nand_spl.c
@@ -99,8 +99,8 @@
 	/*
 	 * Kick Registers need to be set to allow access to Pin Mux registers
 	 */
-	writel(HAWKBOARD_KICK0_UNLOCK, &davinci_syscfg_regs->kick0);
-	writel(HAWKBOARD_KICK1_UNLOCK, &davinci_syscfg_regs->kick1);
+	writel(DV_SYSCFG_KICK0_UNLOCK, &davinci_syscfg_regs->kick0);
+	writel(DV_SYSCFG_KICK1_UNLOCK, &davinci_syscfg_regs->kick1);
 
 	/* setup the SUSPSRC for ARM to control emulation suspend */
 	writel(readl(&davinci_syscfg_regs->suspsrc) &