XIF result interface `we` signal type is not consistent with description

Created by: michael-platzer

The type definition of the we signal in the result packet of the XIF result interface is not consistent with its description. The type of that signal is defined as logic [X_RFW_WIDTH-XLEN:0], which yields a signal with a width of 1 bit in case X_RFW_WIDTH == XLEN and a width of 33 bits in case X_RFW_WIDTH is 64 and XLEN is 32. However, the description states that:

we is 2 bits wide when XLEN = 32 and X_RFR_WIDTH = 64, and 1 bit wide otherwise. If we is 2 bits wide, then we[1] is only allowed to be 1 if we[0] is 1 as well (i.e. for dual writeback).

I assume that the type of the we signal is meant to be logic [X_RFW_WIDTH/XLEN-1:0] instead. Also, the description uses X_RFR_WIDTH instead of X_RFW_WIDTH.