avcodec/vvcdec: remove vvc prefix for x86 and riscv

libavcodec/riscv/vvc/Makefile

@@ -1,3 +1,3 @@
-OBJS-$(CONFIG_VVC_DECODER) += riscv/vvc/vvcdsp_init.o
+OBJS-$(CONFIG_VVC_DECODER)     += riscv/vvc/dsp_init.o
-RVV-OBJS-$(CONFIG_VVC_DECODER) += riscv/vvc/vvc_mc_rvv.o \
+RVV-OBJS-$(CONFIG_VVC_DECODER) += riscv/vvc/mc_rvv.o    \
-                                  riscv/vvc/vvc_sad_rvv.o
+                                  riscv/vvc/sad_rvv.o

libavcodec/x86/vvc/Makefile

@@ -1,11 +1,11 @@
 clean::
 	$(RM) $(CLEANSUFFIXES:%=libavcodec/x86/vvc/%) $(CLEANSUFFIXES:%=libavcodec/x86/h26x/%)
 
-OBJS-$(CONFIG_VVC_DECODER)             += x86/vvc/vvcdsp_init.o \
+OBJS-$(CONFIG_VVC_DECODER)             += x86/vvc/dsp_init.o        \
                                           x86/h26x/h2656dsp.o
-X86ASM-OBJS-$(CONFIG_VVC_DECODER)      += x86/vvc/vvc_alf.o      \
+X86ASM-OBJS-$(CONFIG_VVC_DECODER)      += x86/vvc/alf.o             \
-                                          x86/vvc/vvc_dmvr.o     \
+                                          x86/vvc/dmvr.o            \
-                                          x86/vvc/vvc_mc.o       \
+                                          x86/vvc/mc.o              \
-                                          x86/vvc/vvc_of.o       \
+                                          x86/vvc/of.o              \
-                                          x86/vvc/vvc_sad.o      \
+                                          x86/vvc/sad.o             \
                                           x86/h26x/h2656_inter.o