Add $(LIB_CFLAGS) for any build.info generator that uses $(CFLAGS)

The reason to do so is that some of the generators detect PIC flags
like -fPIC and -KPIC, and those are normally delivered in LD_CFLAGS.

Reviewed-by: Rich Salz <rsalz@openssl.org>

crypto/poly1305/build.info

diff --git a/crypto/poly1305/build.info b/crypto/poly1305/build.info
index de0f577..389c7f6 100644
--- a/crypto/poly1305/build.info
+++ b/crypto/poly1305/build.info
@@ -4,7 +4,7 @@
 
 GENERATE[poly1305-sparcv9.S]=asm/poly1305-sparcv9.pl $(PERLASM_SCHEME)
 INCLUDE[poly1305-sparcv9.o]=..
-GENERATE[poly1305-x86.s]=asm/poly1305-x86.pl $(PERLASM_SCHEME) $(CFLAGS) $(PROCESSOR)
+GENERATE[poly1305-x86.s]=asm/poly1305-x86.pl $(PERLASM_SCHEME) $(CFLAGS) $(LIB_CFLAGS) $(PROCESSOR)
 GENERATE[poly1305-x86_64.s]=asm/poly1305-x86_64.pl $(PERLASM_SCHEME)
 GENERATE[poly1305-ppc.s]=asm/poly1305-ppc.pl $(PERLASM_SCHEME)
 GENERATE[poly1305-ppcfp.s]=asm/poly1305-ppcfp.pl $(PERLASM_SCHEME)