uClibc: use position independent code for crt1, slightly reduces size of all executables

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37096 3c298f89-4303-0410-b956-a3cf2f4a3e73

toolchain/uClibc/patches-0.9.33.2/210-mips_use_pic_crt1.patch

+--- a/libc/sysdeps/linux/mips/Makefile.arch
++++ b/libc/sysdeps/linux/mips/Makefile.arch
+@@ -20,6 +20,8 @@ ifneq ($(UCLIBC_HAS_THREADS_NATIVE),y)
+ SSRC += vfork.S clone.S
+ endif
+ 
++CFLAGS-crt1.S += $(PICFLAG)
++
+ ASFLAGS-syscall_error.S += -D_LIBC_REENTRANT
+ 
+ ARCH_HEADERS := sgidefs.h