Rename dirs

mem/meson.build

@@ -0,0 +1,21 @@
+kernel_sources += files(
+    'fault.c',
+    'init.c',
+    'pmm.c',
+    'slab.c',
+    'stack.c',
+    'usercopy.c',
+    'virt.c',
+    'vma.c',
+    'vmo.c',
+)
+
+if kconfig.get('CONFIG_HAVE_MMU', 'n') == 'y'
+    kernel_sources += files(
+        'pmap.c',
+    )
+endif
+
+if kconfig.get('CONFIG_HAVE_TLB_SHOOTDOWN_IPI', 'n') == 'y'
+    kernel_sources += files('shootdown.c')
+endif