[PATCH] m68k: Define NR_CPUS to 1

This fixes a Kconfig warning

	fs/erofs/Kconfig:137:warning: range is invalid

which originates from EROFS_FS_ZIP_LZMA_DEFAULT_MAX_STREAMS using
NR_CPUS which up to now didn't exist for ARCH=m68k. All other
architectures define this symbol, so fix the outlier.

Fixes: c9b47e6b2311 ("erofs: cap LZMA stream pool size")
Signed-off-by: Uwe Kleine-König <[email protected]>
---
 arch/m68k/Kconfig.cpu | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu
index 148f8a79d206..5a58cc13229e 100644
--- a/arch/m68k/Kconfig.cpu
+++ b/arch/m68k/Kconfig.cpu
@@ -549,6 +549,10 @@ config CACHE_COPYBACK
 endchoice
 endif # HAVE_CACHE_CB
 
+config NR_CPUS
+	int
+	default "1"
+
 # Coldfire cores that do not have a data cache configured can do coherent DMA.
 config COLDFIRE_COHERENT_DMA
 	bool

base-commit: 95d6a9ccef99117115e41e9adb271243bd5e985b
-- 
2.55.0.11.g153666a7d9bb