ARM: 7837/3: fix Thumb-2 bug in AES assembler code

Patch (ARM: 7626/1: arm/crypto: Make asm SHA-1 and AES code Thumb-2 compatible)
enabled building the AES assembler code in Thumb2 mode.
However, this code used arithmetic involving PC rather than adr{l}
instructions to generate PC-relative references to the lookup tables,
and this needs to take into account the different PC offset when
running in Thumb mode.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

idea is taken here - https://github.com/savoca/furnace_kernel_lge_mako/commit/fcae74e458bd217e6994289cd55944ac655e5511