Convert CONFIG_LZMA to Kconfig

This converts the following to Kconfig:
   CONFIG_LZMA

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/ap143_defconfig b/configs/ap143_defconfig
index 0753221..05f1699 100644
--- a/configs/ap143_defconfig
+++ b/configs/ap143_defconfig
@@ -46,3 +46,4 @@
 CONFIG_SYS_NS16550=y
 CONFIG_DM_SPI=y
 CONFIG_ATH79_SPI=y
+CONFIG_LZMA=y