ARM: 9438/1: assembler: Drop obsolete VFP accessor fallback

ARM: 9438/1: assembler: Drop obsolete VFP accessor fallback

Now that the minimum supported binutils version is 2.25, we no longer
need a workaround for binutils older than 2.24 for accessing VFP control
registers from assembler.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>