feat(nxp-clk): setup the DDR PLL

Add the DDR PLL instance and configure it to operate at its maximum
allowed frequency.

Change-Id: I96efd68687de78f70759f631d10a0f611c234c8d
Signed-off-by: Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com>
diff --git a/drivers/nxp/clk/s32cc/include/s32cc-clk-regs.h b/drivers/nxp/clk/s32cc/include/s32cc-clk-regs.h
index 84e76f7..f49f875 100644
--- a/drivers/nxp/clk/s32cc/include/s32cc-clk-regs.h
+++ b/drivers/nxp/clk/s32cc/include/s32cc-clk-regs.h
@@ -13,6 +13,7 @@
 #define ARM_DFS_BASE_ADDR		(0x40054000UL)
 #define CGM0_BASE_ADDR			(0x40030000UL)
 #define CGM1_BASE_ADDR			(0x40034000UL)
+#define DDRPLL_BASE_ADDR		(0x40044000UL)
 
 /* FXOSC */
 #define FXOSC_CTRL(FXOSC)		((FXOSC) + 0x0UL)