lib: enable lzma decompression support for SPL build

This patch enables LZMA decompression support for SPL build

Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
diff --git a/lib/Makefile b/lib/Makefile
index ded9a93..c6f862b 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -67,6 +67,7 @@
 obj-$(CONFIG_$(SPL_)ZSTD) += zstd/
 obj-$(CONFIG_$(SPL_)GZIP) += gunzip.o
 obj-$(CONFIG_$(SPL_)LZO) += lzo/
+obj-$(CONFIG_$(SPL_)LZMA) += lzma/
 obj-$(CONFIG_$(SPL_)LZ4) += lz4_wrapper.o
 
 obj-$(CONFIG_LIBAVB) += libavb/