[source] config: set ARCH if powerpc64 is selected in the configuration

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/7ea6261b4344bde08be0e72ab018f772e8d25da2

commit 7ea6261b4344bde08be0e72ab018f772e8d25da2
Author: Florian Larysch <fl at n621.de>
AuthorDate: Thu Nov 3 13:46:23 2016 +0100

    config: set ARCH if powerpc64 is selected in the configuration
    
    Signed-off-by: Florian Larysch <fl at n621.de>
---
 target/Config.in | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/Config.in b/target/Config.in
index cb876c6..3aef768 100644
--- a/target/Config.in
+++ b/target/Config.in
@@ -199,6 +199,7 @@ config ARCH
 	default "mips64"    if mips64
 	default "mips64el"  if mips64el
 	default "powerpc"   if powerpc
+	default "powerpc64" if powerpc64
 	default "sh3"       if sh3
 	default "sh3eb"     if sh3eb
 	default "sh4"       if sh4