[PR113526][LRA]: Fixing asm-flag-1.c failure on ARM

[PR113526][LRA]: Fixing asm-flag-1.c failure on ARM

My recent patch for PR113356 results in failure asm-flag-1.c test on arm.
After the patch LRA treats asm operand pseudos as general regs.  There
are too many such operands and LRA can not assign hard regs to all
operand pseudos.  Actually we should not assign hard regs to the
operand pseudo at all.  The following patch fixes this.

gcc/ChangeLog:

	PR target/113526
	* lra-constraints.cc (curr_insn_transform): Change class even for
	spilled pseudo successfully matched with with NO_REGS.