remove TAP_INVALID as argument to jtag_add_xxx() fn's

src/flash/str9xpec.c

src/jtag/jtag.c

src/target/arm11.h

src/target/arm720t.c

src/target/arm7tdmi.c

src/target/arm920t.c

src/target/arm926ejs.c

src/target/arm966e.c

src/target/arm9tdmi.c

src/target/arm_adi_v5.c

src/target/arm_jtag.c

src/target/embeddedice.c

src/target/embeddedice.h

src/target/etb.c

src/target/etm.c

src/target/feroceon.c

src/target/mips_ejtag.c

src/target/xscale.c