Compile libvpx code as PIC for all Linux targets

third_party/libvpx/source/config/linux/ia32/vpx_config.h

 /* This file automatically generated by configure. Do not edit! */
-#define RESTRICT    
+#define RESTRICT
 #define ARCH_ARM 0
 #define ARCH_MIPS 0
 #define ARCH_X86 1
 #define ARCH_X86_64 0
 #define ARCH_PPC32 0
 #define ARCH_PPC64 0
 #define HAVE_ARMV5TE 0
 #define HAVE_ARMV6 0
 #define HAVE_ARMV7 0
 #define HAVE_IWMMXT 0
@@ skipping 15 matching lines @@
 #define CONFIG_INSTALL_DOCS 0
 #define CONFIG_INSTALL_BINS 1
 #define CONFIG_INSTALL_LIBS 1
 #define CONFIG_INSTALL_SRCS 0
 #define CONFIG_DEBUG 0
 #define CONFIG_GPROF 0
 #define CONFIG_GCOV 0
 #define CONFIG_RVCT 0
 #define CONFIG_GCC 0
 #define CONFIG_MSVS 0
-#define CONFIG_PIC 0
+#define CONFIG_PIC 1
 #define CONFIG_BIG_ENDIAN 0
 #define CONFIG_CODEC_SRCS 0
 #define CONFIG_DEBUG_LIBS 0
 #define CONFIG_FAST_UNALIGNED 1
 #define CONFIG_MEM_MANAGER 0
 #define CONFIG_MEM_TRACKER 0
 #define CONFIG_MEM_CHECKS 0
 #define CONFIG_MD5 1
 #define CONFIG_DEQUANT_TOKENS 0
 #define CONFIG_DC_RECON 0
 #define CONFIG_RUNTIME_CPU_DETECT 1
 #define CONFIG_POSTPROC 0
 #define CONFIG_MULTITHREAD 1
 #define CONFIG_PSNR 0
 #define CONFIG_VP8_ENCODER 1
 #define CONFIG_VP8_DECODER 1
 #define CONFIG_VP8 1
 #define CONFIG_ENCODERS 1
 #define CONFIG_DECODERS 1
 #define CONFIG_STATIC_MSVCRT 0
 #define CONFIG_SPATIAL_RESAMPLING 1
 #define CONFIG_REALTIME_ONLY 1
 #define CONFIG_SHARED 0
 #define CONFIG_SMALL 0
 #define CONFIG_POSTPROC_VISUALIZER 0
 #define CONFIG_OS_SUPPORT 1
 #define CONFIG_INTERNAL_STATS 0
 #define CONFIG_ERROR_CONCEALMENT 0