[PATCH] powerpc: Clarify wording for CRASH_DUMP Kconfig option

The wording of the CRASH_DUMP Kconfig option is not very clear. It gives you a
kernel that can be used _as_ the kdump kernel, not a kernel that can boot into
a kdump kernel.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index a834f9e..dfba817 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -580,7 +580,7 @@
 	  strongly in flux, so no good recommendation can be made.
 
 config CRASH_DUMP
-	bool "kernel crash dumps (EXPERIMENTAL)"
+	bool "Build a kdump crash kernel (EXPERIMENTAL)"
 	depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL
 	help
 	  Build a kernel suitable for use as a kdump capture kernel.