x86: Add missing colons after assembly labels

This fixes many warnings of the sort
warning: label alone on a line without a colon might be in error

libavcodec/x86/audiodsp.asm

@@ -153,7 +153,7 @@ cglobal vector_clipf, 3, 3, 6, dst, src, len, min, max
 
     movsxdifnidn lenq, lend
 
-.loop
+.loop:
     mova m2, [srcq + 4 * lenq - 4 * mmsize]
     mova m3, [srcq + 4 * lenq - 3 * mmsize]
     mova m4, [srcq + 4 * lenq - 2 * mmsize]

libavcodec/x86/dcadsp.asm

@@ -238,7 +238,7 @@ cglobal synth_filter_inner, 0, 6 + 4 * ARCH_X86_64, 7 + 6 * ARCH_X86_64, \
 %if ARCH_X86_32
     mov         buf2, synth_buf2mp
 %endif
-.mainloop
+.mainloop:
     ; m1 = a  m2 = b  m3 = c  m4 = d
     SETZERO       m3
     SETZERO       m4

libavcodec/x86/h264_qpel_10bit.asm

@@ -386,7 +386,7 @@ MC_CACHE MC10
 ; void ff_h264_qpel_mc02(uint8_t *dst, uint8_t *src, int stride)
 ;-----------------------------------------------------------------------------
 %macro V_FILT 10
-v_filt%9_%10_10
+v_filt%9_%10_10:
     add    r4, r2
 .no_addr4:
     FILT_V m0, m1, m2, m3, m4, m5, m6, m7

libavcodec/x86/h264_weight.asm

@@ -139,12 +139,12 @@ WEIGHT_FUNC_HALF_MM 8, 8
     je .nonnormal
     cmp       r5d, 128
     jne .normal
-.nonnormal
+.nonnormal:
     sar       r5d, 1
     sar       r6d, 1
     sar  off_regd, 1
     sub       r4d, 1
-.normal
+.normal:
 %if cpuflag(ssse3)
     movd       m4, r5d
     movd       m0, r6d

libavcodec/x86/hevc_mc.asm

@@ -184,7 +184,7 @@ cglobal hevc_qpel_ %+ postfix %+ _ %+ %1 %+ _8, 7, 7, 7, dst, dststride, src, sr
     sub       src_m3, pixstride3
 %endif
 
-.loop
+.loop:
 
 %assign i 0
 %rep nb_blocks
@@ -285,7 +285,7 @@ QPEL_8 64, 1
     sub       srcm3q, sstride3q
 %endif
 
-.loop
+.loop:
 
 %assign i 0
 %rep nb_blocks
@@ -444,7 +444,7 @@ cglobal hevc_epel_ %+ postfix %+ _ %+ %1 %+ _8, 7, 7, 6, dst, dststride, src, sr
 %endif
     sub       srcq, pixstride
 
-.loop
+.loop:
 
 %assign i 0
 %rep nb_blocks
@@ -519,7 +519,7 @@ EPEL_8 32, 1
 %endif
     sub       srcq, pixstride
 
-.loop
+.loop:
 
 %assign i 0
 %rep nb_blocks
@@ -651,7 +651,7 @@ cglobal hevc_put_unweighted_pred_ %+ %2 %+ _ %+ %3, 5, 5, 4, dst, dststride, src
     %define STORE_HALF  movd
 %endif
 
-.loop
+.loop:
 %assign i 0
 %rep (%2 + 7) / 8
 
@@ -772,7 +772,7 @@ cglobal hevc_put_weighted_pred_ %+ %2 %+ _ %+ %3, 8, 8, 8, denom, weight0, offse
     SPLATD      m3
 %endif
 
-.loop
+.loop:
 %assign i 0
 %rep (%2 + 3) / 4
 

libavcodec/x86/v210enc.asm

@@ -56,7 +56,7 @@ cglobal v210_planar_pack_10, 5, 5, 4+cpuflag(avx2), y, u, v, dst, width
     mova    m2, [v210_enc_min_10]
     mova    m3, [v210_enc_max_10]
 
-.loop
+.loop:
     movu        xm0, [yq+2*widthq]
 %if cpuflag(avx2)
     vinserti128 m0, m0, [yq+2*widthq+12], 1
@@ -112,7 +112,7 @@ cglobal v210_planar_pack_8, 5, 5, 7, y, u, v, dst, width
     mova    m5, [v210_enc_max_8]
     pxor    m6, m6
 
-.loop
+.loop:
     movu        xm1, [yq+2*widthq]
 %if cpuflag(avx2)
     vinserti128 m1, m1, [yq+2*widthq+12], 1

libavfilter/x86/vf_interlace.asm

@@ -37,7 +37,7 @@ cglobal lowpass_line, 5, 5, 7
 
     pcmpeqb m6, m6
 
-.loop
+.loop:
     mova m0, [r3+r1]
     mova m1, [r3+r1+mmsize]
     pavgb m0, [r4+r1]

libavutil/x86/imgutils.asm

@@ -28,10 +28,10 @@ cglobal image_copy_plane_uc_from, 6, 7, 4, dst, dst_linesize, src, src_linesize,
     add srcq, bwq
     neg bwq
 
-.row_start
+.row_start:
     mov rowposq, bwq
 
-.loop
+.loop:
     movntdqa m0, [srcq + rowposq + 0 * mmsize]
     movntdqa m1, [srcq + rowposq + 1 * mmsize]
     movntdqa m2, [srcq + rowposq + 2 * mmsize]