[PATCH, build]: Update x-i386 and x-alpha for automatic dependencies

[Uros Bizjak]

Hello!

2013-10-02  Uros Bizjak  <ubiz...@gmail.com>

    * config/i386/x-i386 (driver-i386.o): Remove header dependencies.
    Use $(COMPILE) and $(POSTCOMPILE).

    * config/alpha/x-alpha (driver-alpha.o): Ditto.

Bootstrapped on x86_64-pc-linux-gnu and alphaev68-pc-linux-gnu,
committed to mainline SVN.

Uros.

Index: alpha/x-alpha
===================================================================
--- alpha/x-alpha       (revision 203117)
+++ alpha/x-alpha       (working copy)
@@ -1,3 +1,3 @@
-driver-alpha.o: $(srcdir)/config/alpha/driver-alpha.c \
-  $(CONFIG_H) $(SYSTEM_H)
-       $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) $<
+driver-alpha.o: $(srcdir)/config/alpha/driver-alpha.c
+       $(COMPILE) $<
+       $(POSTCOMPILE)
Index: i386/x-i386
===================================================================
--- i386/x-i386 (revision 203117)
+++ i386/x-i386 (working copy)
@@ -1,4 +1,3 @@
-driver-i386.o : $(srcdir)/config/i386/driver-i386.c \
-  $(srcdir)/config/i386/cpuid.h \
-  $(CONFIG_H) $(SYSTEM_H) $(TM_H) coretypes.h
-       $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) $<
+driver-i386.o : $(srcdir)/config/i386/driver-i386.c
+       $(COMPILE) $<
+       $(POSTCOMPILE)