fate: trying to fix "libavcodec/dct-test.o:(.rodata+0xdc): undefined reference to fdct_altivec"

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/dct-test.c

@@ -53,7 +53,7 @@ void ff_bfin_idct(DCTELEM *block);
 void ff_bfin_fdct(DCTELEM *block);
 
 // ALTIVEC
-void fdct_altivec(DCTELEM *block);
+void ff_fdct_altivec(DCTELEM *block);
 //void idct_altivec(DCTELEM *block);?? no routine
 
 // ARM
@@ -95,7 +95,7 @@ static const struct algo fdct_tab[] = {
 #endif
 
 #if HAVE_ALTIVEC
-    { "altivecfdct",    fdct_altivec,          NO_PERM,   AV_CPU_FLAG_ALTIVEC },
+    { "altivecfdct",    ff_fdct_altivec,       NO_PERM,   AV_CPU_FLAG_ALTIVEC },
 #endif
 
 #if ARCH_BFIN