[arm] complete vmsr/vmrs blank and case adjustments

[arm] complete vmsr/vmrs blank and case adjustments

Back in September last year, some of the vmsr and vmrs patterns had an
extraneous blank removed, and the case of register names lowered, but
another instance remained, and so did a testcase.

for  gcc/ChangeLog

	* config/arm/vfp.md (*thumb2_movsi_vfp): Drop blank after tab
	after vmsr and vmrs, and lower the case of P0.

for  gcc/testsuite/ChangeLog

	* gcc.target/arm/acle/cde-mve-full-assembly.c: Drop blank
	after tab after vmsr, and lower the case of P0.