arm: cache: add support for LPAE for region D$ behavior

Add LPAE support for mmu_set_region_dcache_behaviour. The function
is in use in some LPAE capable board such TI DRA7xx or NXP i.MX 7.

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>

arch/arm/lib/cache-cp15.c

@@ -61,7 +61,11 @@ __weak void mmu_page_table_flush(unsigned long start, unsigned long stop)
 void mmu_set_region_dcache_behaviour(phys_addr_t start, size_t size,
 				     enum dcache_option option)
 {
+#ifdef CONFIG_ARMV7_LPAE
+	u64 *page_table = (u64 *)gd->arch.tlb_addr;
+#else
 	u32 *page_table = (u32 *)gd->arch.tlb_addr;
+#endif
 	unsigned long upto, end;
 
 	end = ALIGN(start + size, MMU_SECTION_SIZE) >> MMU_SECTION_SHIFT;