[PATCH] tools/perf/powerpc: Fix build break

[Sukadev Bhattiprolu]

I posted a patch for this to LKML last week:

	https://lkml.org/lkml/2014/8/7/77

Aneesh Kumar K.V [aneesh.kumar at linux.vnet.ibm.com] wrote:
|   CC       arch/powerpc/util/skip-callchain-idx.o
| arch/powerpc/util/skip-callchain-idx.c: In function ‘check_return_reg’:
| arch/powerpc/util/skip-callchain-idx.c:55:3: error: implicit declaration of function ‘pr_debug’ [-Werror=implicit-function-declaration]
|    pr_debug("dwarf_frame_register() %s\n", dwarf_errmsg(-1));
| 
| Signed-off-by: Aneesh Kumar K.V <aneesh.kumar at linux.vnet.ibm.com>
| ---
|  tools/perf/arch/powerpc/util/skip-callchain-idx.c | 1 +
|  1 file changed, 1 insertion(+)
| 
| diff --git a/tools/perf/arch/powerpc/util/skip-callchain-idx.c b/tools/perf/arch/powerpc/util/skip-callchain-idx.c
| index a7c23a4b3778..d73ef8bb08c7 100644
| --- a/tools/perf/arch/powerpc/util/skip-callchain-idx.c
| +++ b/tools/perf/arch/powerpc/util/skip-callchain-idx.c
| @@ -15,6 +15,7 @@
|  
|  #include "util/thread.h"
|  #include "util/callchain.h"
| +#include "util/debug.h"
|  
|  /*
|   * When saving the callchain on Power, the kernel conservatively saves
| -- 
| 1.9.1
| 
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