ram: k3-ddrss: Rename ddrss_ss_regs to ddrss_ctl_regs

The current address being read from dt actually represents the ddrss_ctl
memory region, while ddrss_ss region is something else. Introduce
ddrss_ctl_regs and use it to free up ddrss_ss_regs for its proper
purpose later so that we can avoid confusion.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
diff --git a/drivers/ram/k3-ddrss/k3-ddrss.c b/drivers/ram/k3-ddrss/k3-ddrss.c
index 25e3976..ffed426 100644
--- a/drivers/ram/k3-ddrss/k3-ddrss.c
+++ b/drivers/ram/k3-ddrss/k3-ddrss.c
@@ -106,6 +106,7 @@
 	struct udevice *dev;
 	void __iomem *ddrss_ss_cfg;
 	void __iomem *ddrss_ctrl_mmr;
+	void __iomem *ddrss_ctl_cfg;
 	struct power_domain ddrcfg_pwrdmn;
 	struct power_domain ddrdata_pwrdmn;
 	struct clk ddr_clk;
@@ -319,7 +320,7 @@
 		dev_err(dev, "No reg property for DDRSS wrapper logic\n");
 		return -EINVAL;
 	}
-	ddrss->ddrss_ss_cfg = (void *)reg;
+	ddrss->ddrss_ctl_cfg = (void *)reg;
 
 	reg = dev_read_addr_name(dev, "ctrl_mmr_lp4");
 	if (reg == FDT_ADDR_T_NONE) {
@@ -403,7 +404,7 @@
 		hang();
 	}
 
-	config->ctlbase = (struct lpddr4_ctlregs_s *)ddrss->ddrss_ss_cfg;
+	config->ctlbase = (struct lpddr4_ctlregs_s *)ddrss->ddrss_ctl_cfg;
 	config->infohandler = (lpddr4_infocallback) k3_lpddr4_info_handler;
 
 	status = driverdt->init(pd, config);