fix some defaults in fstab to configure as mounted

roles/os_hardening/defaults/main.yml

@@ -388,21 +388,21 @@ os_sha_crypt_max_rounds: "640000"
 
 os_mnt_boot_dir_mode: '0700'
 os_mnt_boot_enabled: false
-os_mnt_boot_src: ''
+os_mnt_boot_src: ""
 os_mnt_boot_options: 'rw,nosuid,nodev,noexec'
 os_mnt_boot_filesystem: 'ext4'
 
 os_mnt_dev_dir_mode: '0755'
 os_mnt_dev_enabled: true
 os_mnt_dev_src: "devtmpfs"
 os_mnt_dev_options: 'rw,nosuid,noexec'
-os_mnt_dev_filesystem: "ext4"
+os_mnt_dev_filesystem: "devtmpfs"
 
 os_mnt_dev_shm_dir_mode: '1777'
 os_mnt_dev_shm_enabled: true
 os_mnt_dev_shm_src: "tmpfs"
 os_mnt_dev_shm_options: 'rw,nosuid,nodev,noexec'
-os_mnt_dev_shm_filesystem: "ext4"
+os_mnt_dev_shm_filesystem: "tmpfs"
 
 os_mnt_home_dir_mode: '0755'
 os_mnt_home_enabled: false
@@ -414,7 +414,7 @@ os_mnt_run_dir_mode: '0755'
 os_mnt_run_enabled: true
 os_mnt_run_src: "tmpfs"
 os_mnt_run_options: 'rw,nosuid,nodev'
-os_mnt_run_filesystem: "ext4"
+os_mnt_run_filesystem: "tmpfs"
 
 os_mnt_var_dir_mode: '0755'
 os_mnt_var_enabled: false