build: Remove autotools support

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: If57df32d4b5e879c29f42b022bd90427ea3dbd57
diff --git a/.gitignore b/.gitignore
index 4ab572b..6da54be 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,27 +1,3 @@
-Makefile
-Makefile.in
-aclocal.m4
-ar-lib
-arm-openbmc-linux-gnueabi-libtool
-autom4te.cache*
-compile
-config.*
-depcomp
-install-sh
-ltmain.sh
-missing
-.deps*
-configure
-stamp-h1
-*.o
-openpower-read-vpd
-.libs*
-*.lo
-*.la
-test-driver
-*.dirstamp
-parser_test
-store_test
-*.log
-*.trs
-builddir
+build*/
+subprojects/*
+!subprojects/*.wrap