ARM: imx: Add OCRAM_S into iMX8M MMU tables

The OCRAM_S is regular memory, just like the OCRAM, add it to the MMU
tables so it can be used and cached.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c
index f3b9f2d..36abb2e 100644
--- a/arch/arm/mach-imx/imx8m/soc.c
+++ b/arch/arm/mach-imx/imx8m/soc.c
@@ -105,6 +105,13 @@
 			 PTE_BLOCK_NON_SHARE |
 			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
 	}, {
+		/* OCRAM_S */
+		.virt = 0x180000UL,
+		.phys = 0x180000UL,
+		.size = 0x8000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+			 PTE_BLOCK_OUTER_SHARE
+	}, {
 		/* TCM */
 		.virt = 0x7C0000UL,
 		.phys = 0x7C0000UL,