powerpc/64s: Add all POWER9 features to CPU_FTRS_ALWAYS

It's not a bug to have features missing in CPU_FTR_ALWAYS, but it is a
missed opportunity for optimisation.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/include/asm/cputable.h

@@ -546,7 +546,7 @@ enum {
 	     CPU_FTRS_POWER6 & CPU_FTRS_POWER7 & CPU_FTRS_CELL & \
 	     CPU_FTRS_PA6T & CPU_FTRS_POWER8 & CPU_FTRS_POWER8E & \
 	     CPU_FTRS_POWER8_DD1 & ~CPU_FTR_HVMODE & CPU_FTRS_POSSIBLE & \
-	     CPU_FTRS_POWER9)
+	     CPU_FTRS_POWER9 & CPU_FTRS_POWER9_DD1 & CPU_FTRS_POWER9_DD2_1)
 #endif
 #else
 enum {