[PATCH] decompressors: fix typo "POWERPC"

[Paul Bolle]

Commit 5dc49c75a26b99e86a18441e0b64c1f7c7c6a500 ("decompressors: make
the default XZ_DEC_* config match the selected architecture") added
	default y if POWERPC

to lib/xz/Kconfig. But there is no Kconfig symbol POWERPC. The most
general Kconfig symbol for the powerpc architecture is PPC. So let's use
that.

Signed-off-by: Paul Bolle <pebolle@xxxxxxxxxx>
---
0) Tested with "make ARCH=powerpc oldconfig" (on some powerpc
defconfig).

1) By the way: why does the XZ related code use both the macro
CONFIG_XZ_DEC_POWERPC and the macro XZ_DEC_POWERPC? (Ditto for other
architectures.) That looks odd.

 lib/xz/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/xz/Kconfig b/lib/xz/Kconfig
index 82a04d7..08837db 100644
--- a/lib/xz/Kconfig
+++ b/lib/xz/Kconfig
@@ -15,7 +15,7 @@ config XZ_DEC_X86
 
 config XZ_DEC_POWERPC
 	bool "PowerPC BCJ filter decoder"
-	default y if POWERPC
+	default y if PPC
 	select XZ_DEC_BCJ
 
 config XZ_DEC_IA64
-- 
1.7.11.7

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