[Bug target/103781] generic/cortex-a53 cost model for SLP for aarch64 is good

[husseydevin at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103781

--- Comment #4 from Devin Hussey <husseydevin at gmail dot com> ---
Makes sense because the multiplier is what, 5 cycles on an A53?