[COMMITTED] sh: Add sh4 fpu Implies folder

[Adhemerval Zanella]

I forgot to add this fixes BZ#26932.

On 27/11/2020 09:31, Adhemerval Zanella wrote:
> The commit 605f38177db (sh: Split BE/LE abilist) did not take in
> consideration the SH4 fpu support.
> 
> Checked with a build for sh4-linux-gnu and manually checked that
> the implementations at sysdeps/sh/sh4/fpu/ are selected.
> 
> John Paul Adrian Glaubitz also confirmed it fixes the build issues
> he encontered.
> ---
>  sysdeps/sh/be/sh4/fpu/Implies                 | 1 +
>  sysdeps/sh/le/sh4/fpu/Implies                 | 1 +
>  sysdeps/unix/sysv/linux/sh/be/sh4/fpu/Implies | 1 +
>  sysdeps/unix/sysv/linux/sh/le/sh4/fpu/Implies | 1 +
>  4 files changed, 4 insertions(+)
>  create mode 100644 sysdeps/sh/be/sh4/fpu/Implies
>  create mode 100644 sysdeps/sh/le/sh4/fpu/Implies
>  create mode 100644 sysdeps/unix/sysv/linux/sh/be/sh4/fpu/Implies
>  create mode 100644 sysdeps/unix/sysv/linux/sh/le/sh4/fpu/Implies
> 
> diff --git a/sysdeps/sh/be/sh4/fpu/Implies b/sysdeps/sh/be/sh4/fpu/Implies
> new file mode 100644
> index 0000000000..71b28ee1a4
> --- /dev/null
> +++ b/sysdeps/sh/be/sh4/fpu/Implies
> @@ -0,0 +1 @@
> +sh/sh4/fpu
> diff --git a/sysdeps/sh/le/sh4/fpu/Implies b/sysdeps/sh/le/sh4/fpu/Implies
> new file mode 100644
> index 0000000000..71b28ee1a4
> --- /dev/null
> +++ b/sysdeps/sh/le/sh4/fpu/Implies
> @@ -0,0 +1 @@
> +sh/sh4/fpu
> diff --git a/sysdeps/unix/sysv/linux/sh/be/sh4/fpu/Implies b/sysdeps/unix/sysv/linux/sh/be/sh4/fpu/Implies
> new file mode 100644
> index 0000000000..7eeaf15a5a
> --- /dev/null
> +++ b/sysdeps/unix/sysv/linux/sh/be/sh4/fpu/Implies
> @@ -0,0 +1 @@
> +unix/sysv/linux/sh/sh4/fpu
> diff --git a/sysdeps/unix/sysv/linux/sh/le/sh4/fpu/Implies b/sysdeps/unix/sysv/linux/sh/le/sh4/fpu/Implies
> new file mode 100644
> index 0000000000..7eeaf15a5a
> --- /dev/null
> +++ b/sysdeps/unix/sysv/linux/sh/le/sh4/fpu/Implies
> @@ -0,0 +1 @@
> +unix/sysv/linux/sh/sh4/fpu
>