[PATCH] RISC-V: Update the doc to match ISA manual

[Kito Cheng]

ISA manual use funct7 rather than func7[1], and I realized that may something I
typo at beginning when I write the patch for `.insn` support...:P

[1] https://github.com/riscv/riscv-isa-manual/blob/main/src/rv32.adoc#integer-register-register-operations
---
 gas/doc/c-riscv.texi | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/gas/doc/c-riscv.texi b/gas/doc/c-riscv.texi
index 5614e766988..915dfefe56b 100644
--- a/gas/doc/c-riscv.texi
+++ b/gas/doc/c-riscv.texi
@@ -442,7 +442,7 @@ instruction formats:
 @multitable @columnfractions .15 .40
 @item opcode7 @tab Unsigned immediate or opcode name for 7-bits opcode.
 @item opcode2 @tab Unsigned immediate or opcode name for 2-bits opcode.
-@item func7 @tab Unsigned immediate for 7-bits function code.
+@item funct7 @tab Unsigned immediate for 7-bits function code.
 @item func6 @tab Unsigned immediate for 6-bits function code.
 @item func4 @tab Unsigned immediate for 4-bits function code.
 @item func3 @tab Unsigned immediate for 3-bits function code.
@@ -554,10 +554,10 @@ The following table lists the RISC-V instruction formats that are available
 with the @samp{.insn} pseudo directive:
 
 @table @code
-@item R type: .insn r opcode7, func3, func7, rd, rs1, rs2
+@item R type: .insn r opcode7, func3, funct7, rd, rs1, rs2
 @verbatim
 +-------+-----+-----+-------+----+---------+
-| func7 | rs2 | rs1 | func3 | rd | opcode7 |
+| funct7 | rs2 | rs1 | func3 | rd | opcode7 |
 +-------+-----+-----+-------+----+---------+
 31      25    20    15      12   7        0
 @end verbatim
-- 
2.34.1