aarch64: linker: Align end symbols

The end symbols and especially z_mapped_end must be aligned to the MMU
page size.

Signed-off-by: Carlo Caione <[email protected]>

Author: carlocaione

include/arch/arm/aarch64/scripts/linker.ld

@@ -294,6 +294,7 @@ SECTIONS
 
     /* Define linker symbols */
 
+    MMU_ALIGN;
     _image_ram_end = .;
     _end = .; /* end of image */
     z_mapped_end = .;