[PATCH] powerpc: Add config fragment for disabling -Werror

This makes it easy to disable building with -Werror:

  $ make defconfig
  $ grep WERROR .config
  # CONFIG_PPC_DISABLE_WERROR is not set
  CONFIG_PPC_WERROR=y

  $ make disable-werror.config
    GEN     Makefile
  Using .config as base
  Merging arch/powerpc/configs/disable-werror.config
  Value of CONFIG_PPC_DISABLE_WERROR is redefined by fragment arch/powerpc/configs/disable-werror.config:
  Previous value: # CONFIG_PPC_DISABLE_WERROR is not set
  New value: CONFIG_PPC_DISABLE_WERROR=y
  ...

  $ grep WERROR .config
  CONFIG_PPC_DISABLE_WERROR=y

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
 arch/powerpc/configs/disable-werror.config | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 arch/powerpc/configs/disable-werror.config

diff --git a/arch/powerpc/configs/disable-werror.config b/arch/powerpc/configs/disable-werror.config
new file mode 100644
index 000000000000..6ea12a12432c
--- /dev/null
+++ b/arch/powerpc/configs/disable-werror.config

@@ -0,0 +1 @@
+CONFIG_PPC_DISABLE_WERROR=y

-- 
2.25.1