[PATCH 4.6 003/121] MIPS: math-emu: Fix jalr emulation when rd == $0

4.6-stable review patch. If anyone has any objections, please let me know. -- From: Paul Burton commit ab4a92e66741b35ca12f8497896bafbe579c28a1 upstream. When emulating a jalr instruction with rd == $0, the code in isBranchInstr was incorrectly writing

[PATCH 4.6 003/121] MIPS: math-emu: Fix jalr emulation when rd == $0

4.6-stable review patch. If anyone has any objections, please let me know. -- From: Paul Burton commit ab4a92e66741b35ca12f8497896bafbe579c28a1 upstream. When emulating a jalr instruction with rd == $0, the code in isBranchInstr was incorrectly writing to GPR $0 which should