Do not use a symlink for the binary, simply name if luajit

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

Index: b/Makefile
===================================================================
--- a/Makefile
+++ b/Makefile
@@ -42,8 +42,7 @@
 INSTALL_MAN= $(INSTALL_SHARE)/man/man1
 INSTALL_PKGCONFIG= $(INSTALL_LIB)/pkgconfig
 
-INSTALL_TNAME= luajit-$(VERSION)
-INSTALL_TSYMNAME= luajit
+INSTALL_TNAME= luajit
 INSTALL_ANAME= libluajit-$(ABIVER).a
 INSTALL_SONAME= libluajit-$(ABIVER).so.$(MAJVER).$(MINVER).$(RELVER)
 INSTALL_SOSHORT= libluajit-$(ABIVER).so
@@ -57,7 +56,6 @@
 INSTALL_SHORT1= $(INSTALL_LIB)/$(INSTALL_SOSHORT)
 INSTALL_SHORT2= $(INSTALL_LIB)/$(INSTALL_SOSHORT)
 INSTALL_T= $(INSTALL_BIN)/$(INSTALL_TNAME)
-INSTALL_TSYM= $(INSTALL_BIN)/$(INSTALL_TSYMNAME)
 INSTALL_PC= $(INSTALL_PKGCONFIG)/$(INSTALL_PCNAME)
 
 INSTALL_DIRS= $(INSTALL_BIN) $(INSTALL_LIB) $(INSTALL_INC) $(INSTALL_MAN) \