symbols: don't over-align generated data

symbols: don't over-align generated data

x86 is one of the few architectures where .align has the same meaning as
.balign; most other architectures (Arm, PPC, and RISC-V in particular)
give it the same meaning as .p2align. Aligning every one of these item
to 256 bytes (on all 64-bit architectures except x86-64) is clearly too
much.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>