softfloat: indent should be tab

Signed-off-by: Chih-Min Chao <[email protected]>

Author: chihminchao

softfloat/softfloat.mk.in

@@ -14,7 +14,7 @@ softfloat_c_srcs = \
 	bf16_cmp.c \
 	bf16_classify.c \
 	bf16_to_e4m3.c \
-    bf16_to_e5m2.c \
+	bf16_to_e5m2.c \
 	bf16_to_f32.c \
 	bf16_to_f64.c \
 	bf16_to_i8.c \