Changed post increment load/store encodings to CV32E40P

Created by: MaryBennett

gas/testsuite/gas/riscv:

• cv-mem-lbrr.d: Updated expected output of test.
• cv-mem-lbrrpost.d: Likewise.
• cv-mem-lburr.d: Likewise.
• cv-mem-lburrpost.d: Likewise.
• cv-mem-lhrr.d: Likewise.
• cv-mem-lhrrpost.d: Likewise.
• cv-mem-lhurr.d: Likewise.
• cv-mem-lhurrpost.d: Likewise.
• cv-mem-lwrr.d: Likewise.
• cv-mem-lwrrpost.d: Likewise.
• cv-mem-march-rv32i-xcorev.d: Likewise.
• cv-mem-sbrr.d: Likewise.
• cv-mem-sbrrpost.d: Likewise.
• cv-mem-shrr.d: Likewise.
• cv-mem-shrrpost.d: Likewise.
• cv-mem-swrr.d: Likewise.
• cv-mem-swrrpost.d: Likewise.

include/opcode:

• riscv-opc.h: Changed post increment load/store encodings to CV32E40P.

Signed-off-by: Mary Bennett mary.bennett@embecosm.com