UBUNTU: SAUCE: Sync pgtable-3level.h with upstream stable

BugLink: https://bugs.launchpad.net/bugs/1792174

Adjusts formatting (no code change) to match current upstream
stable 4.4.148.
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

arch/x86/include/asm/pgtable-3level.h

@@ -181,9 +181,7 @@ static inline pmd_t native_pmdp_get_and_clear(pmd_t *pmdp)
 
 #define SWP_OFFSET_FIRST_BIT	(_PAGE_BIT_PROTNONE + 1)
 
-/* We always extract/encode the offset by shifting it all the way up,
- * and then down again
- */
+/* We always extract/encode the offset by shifting it all the way up, and then down again */
 #define SWP_OFFSET_SHIFT	(SWP_OFFSET_FIRST_BIT + SWP_TYPE_BITS)
 
 #define MAX_SWAPFILES_CHECK() BUILD_BUG_ON(MAX_SWAPFILES_SHIFT > 5)