K 10
svn:author
V 6
mhorne
K 8
svn:date
V 27
2019-06-30T19:47:15.436911Z
K 7
svn:log
V 395
readelf: Add RISC-V DWARF register aliases

This allows DWARF debugging output to use the common register
mneumonics, such as ra, sp, or t0.

DWARF registers 0-31 are mapped to the 32 general purpose registers,
which are then followed by the 32 floating point registers.

Reviewed by:	markj
Approved by:	markj (mentor)
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D20779

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