Incorrect mapping of loop to source

[aayasin]

The hottest 2 loops of SVT-AV1:

# g "^loop#[12]:" SVT-AV1-n8-base-t75-janysave_type-er20c4ppp-c7000001.perf.data.info.log 
loop#2: [ip: 0x977f00, hotness:   7464, srcline: highbd_convolve_2d_avx2.c;111, size: 47, imix-ID: 9200, back: 0x977fdf, entry-block: 0x977e60, attributes: vec128-int;vec256-int, inner: 0, outer: 0, Conds: 0, op-jcc-mf: 1, mov-op-mf: 0, ld-op-mf: 0, lea: 0, cmov: 0, load: 9, store: 2, rmw: 0, lock: 0, prefetch: 0, zcnt: 0]
loop#1: [ip: 0x977d80, hotness:   9605, srcline: highbd_convolve_2d_avx2.c;111, size: 46, imix-ID: 4120, back: 0x977e53, entry-block: -, attributes: vec128-int;vec256-int, inner: 0, outer: 0, Conds: 2, op-jcc-mf: 2, mov-op-mf: 1, ld-op-mf: 0, lea: 0, cmov: 0, load: 4, store: 1, rmw: 0, lock: 0, prefetch: 0, zcnt: 0]

are incorrectly mapped to same loop at line 111, see source at
https://gitlab.com/AOMediaCodec/SVT-AV1/-/blob/master/Source/Lib/Common/ASM_AVX2/highbd_convolve_2d_avx2.c?ref_type=heads#L111

Prevent buggy mapping first (nullify last label after use) then fix most likely require perf tool change.