ARM: OMAP2+: drop unnecessary adrl

The adrl instruction has been introduced with commit dd313947 ("ARM:
omap3: Thumb-2 compatibility for sleep34xx.S"), back when this assembly
file was considerably longer. Today adr seems to have enough reach, even
when inserting about 60 instructions between the use site and the label.
Replace adrl with conventional adr instruction.

This allows to build this file using Clang's integrated assembler (which
does not support the adrl pseudo instruction).

Link: https://github.com/ClangBuiltLinux/linux/issues/430


Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Tony Lindgren <tony@atomide.com>