[PATCH] powerpc: do not build ppc_save_regs.o always

["Jiri Slaby (SUSE)" <jirislaby@kernel.org>]

The Fixes commit below tried to add CONFIG_PPC_BOOK3S to one of the
conditions to enable the build of ppc_save_regs.o. But it failed to do
so, in fact. The commit omitted to add a dollar sign.

Therefore, ppc_save_regs.o is built always these days (as
"(CONFIG_PPC_BOOK3S)" is never an empty string).

Fix this by adding the missing dollar sign.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Fixes: fc2a5a6161a2 ("powerpc/64s: ppc_save_regs is now needed for all 64s builds")
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Naveen N Rao <naveen@kernel.org>
Cc: linuxppc-dev@lists.ozlabs.org
---
 arch/powerpc/kernel/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 6ac621155ec3..0c26b2412d17 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -160,7 +160,7 @@ endif
 
 obj64-$(CONFIG_PPC_TRANSACTIONAL_MEM)	+= tm.o
 
-ifneq ($(CONFIG_XMON)$(CONFIG_KEXEC_CORE)(CONFIG_PPC_BOOK3S),)
+ifneq ($(CONFIG_XMON)$(CONFIG_KEXEC_CORE)$(CONFIG_PPC_BOOK3S),)
 obj-y				+= ppc_save_regs.o
 endif
 
-- 
2.49.0