gdbserver: Use pattern rule for regformats source file generation

gdbserver: Use pattern rule for regformats source file generation

gdb/gdbserver/ChangeLog:

	* Makefile.in
	(%.c: ../regformats/%.dat,
	(%.c: ../regformats/arm/%.dat,
	(%.c: ../regformats/i386/%.dat,
	(%.c: ../regformats/rs6000/%.dat): New rules.
	(aarch64.c): Remove.
	(reg-arm.c): Remove.
	(arm-with-iwmmxt.c): Remove.
	(arm-with-vfpv2.c): Remove.
	(arm-with-vfpv3.c): Remove.
	(arm-with-neon.c): Remove.
	(reg-bfin.c): Remove.
	(reg-cris.c): Remove.
	(reg-crisv32.c): Remove.
	(i386.c): Remove.
	(i386-linux.c): Remove.
	(i386-avx.c): Remove.
	(i386-avx-linux.c): Remove.
	(i386-avx-avx512.c): Remove.
	(i386-avx-avx512-linux.c): Remove.
	(i386-mpx.c): Remove.
	(i386-mpx-linux.c): Remove.
	(i386-avx-mpx-avx512-pku.c): Remove.
	(i386-avx-mpx-avx512-pku-linux.c): Remove.
	(i386-avx-mpx.c): Remove.
	(i386-avx-mpx-linux.c): Remove.
	(i386-mmx.c): Remove.
	(i386-mmx-linux.c): Remove.
	(reg-ia64.c): Remove.
	(reg-m32r.c): Remove.
	(reg-m68k.c): Remove.
	(reg-cf.c): Remove.
	(mips-linux.c): Remove.
	(mips-dsp-linux.c): Remove.
	(mips64-linux.c): Remove.
	(mips64-dsp-linux.c): Remove.
	(nios2-linux.c): Remove.
	(powerpc-32.c): Remove.
	(powerpc-32l.c): Remove.
	(powerpc-altivec32l.c): Remove.
	(powerpc-cell32l.c): Remove.
	(powerpc-vsx32l.c): Remove.
	(powerpc-isa205-32l.c): Remove.
	(powerpc-isa205-altivec32l.c): Remove.
	(powerpc-isa205-vsx32l.c): Remove.
	(powerpc-e500l.c): Remove.
	(powerpc-64l.c): Remove.
	(powerpc-altivec64l.c): Remove.
	(powerpc-cell64l.c): Remove.
	(powerpc-vsx64l.c): Remove.
	(powerpc-isa205-64l.c): Remove.
	(powerpc-isa205-altivec64l.c): Remove.
	(powerpc-isa205-vsx64l.c): Remove.
	(s390-linux32.c): Remove.
	(s390-linux32v1.c): Remove.
	(s390-linux32v2.c): Remove.
	(s390-linux64.c): Remove.
	(s390-linux64v1.c): Remove.
	(s390-linux64v2.c): Remove.
	(s390-te-linux64.c): Remove.
	(s390-vx-linux64.c): Remove.
	(s390-tevx-linux64.c): Remove.
	(s390x-linux64.c): Remove.
	(s390x-linux64v1.c): Remove.
	(s390x-linux64v2.c): Remove.
	(s390x-te-linux64.c): Remove.
	(s390x-vx-linux64.c): Remove.
	(s390x-tevx-linux64.c): Remove.
	(tic6x-c64xp-linux.c): Remove.
	(tic6x-c64x-linux.c): Remove.
	(tic6x-c62x-linux.c): Remove.
	(reg-sh.c): Remove.
	(reg-sparc64.c): Remove.
	(reg-spu.c): Remove.
	(amd64.c): Remove.
	(amd64-linux.c): Remove.
	(amd64-avx.c): Remove.
	(amd64-avx-linux.c): Remove.
	(amd64-avx-avx512.c): Remove.
	(amd64-avx-avx512-linux.c): Remove.
	(amd64-mpx.c): Remove.
	(amd64-mpx-linux.c): Remove.
	(amd64-avx-mpx-avx512-pku.c): Remove.
	(amd64-avx-mpx-avx512-pku-linux.c): Remove.
	(amd64-avx-mpx.c): Remove.
	(amd64-avx-mpx-linux.c): Remove.
	(x32.c): Remove.
	(x32-linux.c): Remove.
	(x32-avx.c): Remove.
	(x32-avx-linux.c): Remove.
	(x32-avx-avx512.c): Remove.
	(x32-avx-avx512-linux.c): Remove.
	(reg-xtensa.c): Remove.
	(reg-tilegx.c): Remove.
	(reg-tilegx32.c): Remove.