arm64_mmu.h: Change ordering of access flags for user data

This makes it more readable, no functional changes

Author: pussuw

arch/arm64/src/common/arm64_mmu.h

@@ -252,7 +252,7 @@
 /* Flags for user FLASH (RX) and user RAM (RW) */
 
 #define MMU_UTEXT_FLAGS             (PTE_BLOCK_DESC_AP_RO | PTE_BLOCK_DESC_PXN | PTE_BLOCK_DESC_AP_USER | PTE_BLOCK_DESC_NG | MMU_MT_NORMAL_FLAGS)
-#define MMU_UDATA_FLAGS             (PTE_BLOCK_DESC_AP_RW | PTE_BLOCK_DESC_PXN | PTE_BLOCK_DESC_UXN | PTE_BLOCK_DESC_AP_USER | PTE_BLOCK_DESC_NG | MMU_MT_NORMAL_FLAGS)
+#define MMU_UDATA_FLAGS             (PTE_BLOCK_DESC_AP_RW | PTE_BLOCK_DESC_PXN | PTE_BLOCK_DESC_AP_USER | PTE_BLOCK_DESC_NG | PTE_BLOCK_DESC_UXN | MMU_MT_NORMAL_FLAGS)
 
 /* I/O region flags */