Record FPSR for SIMD/FP data instructions

I noticed this failure in gdb.reverse/reverse-insn.exp:

FAIL: gdb.reverse/insn-reverse.exp: adv_simd_vect_shift: compare registers on insn 0:fcvtzs     s0, s0, #1

Turns out we're not recording changes to the FPSR.  The SIMD/FP data
instructions may set bits in the FPSR, so it needs to be recorded for
proper reverse operations.

gdb/ChangeLog:

2020-12-16  Luis Machado  <luis.machado@linaro.org>

	* aarch64-tdep.c (aarch64_record_data_proc_simd_fp): Record FPSR.