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: NMarek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>

arch/arm/mach-imx/imx8m/soc.c

@@ -104,6 +104,13 @@ static struct mm_region imx8m_mem_map[] = {
 		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
 			 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,