powerpc/sstep: Don’t define variables we won’t be using

When compiling with W=1 on 32-bit PowerPC, -Wunused-but-set-variable was
set, and alongside -Werror caused the build to fail with this error:
```
../arch/powerpc/lib/sstep.c: In function 'analyse_instr':
../arch/powerpc/lib/sstep.c:1350:28: error: variable 'suffix' set but not used [-Werror=unused-but-set-variable]
 1350 |         unsigned int word, suffix;
      |                            ^~~~~~
../arch/powerpc/lib/sstep.c:1346:38: error: variable 'rc' set but not used [-Werror=unused-but-set-variable]
 1346 |         unsigned int opcode, ra, rb, rc, rd, spr, u;
      |                                      ^~
cc1: all warnings being treated as errors
```

Signed-off-by: Link Mauve <linkmauve@linkmauve.fr>
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20260730065007.964703-3-linkmauve@linkmauve.fr

0 files changed, 0 insertions, 0 deletions