mesa: Arrange _mesa_uniform_matrix parameters to match the call sites

mesa: Arrange _mesa_uniform_matrix parameters to match the call sites

By putting the parameters first that match the parameters to the call
site, 4 (of 16) instructions are saved at _mesa_UniformMatrix4fv on
x64.  On IA32, the details of the instructions change, but it is the
same count and mix of instructions.

Before:

0000000000001380 <_mesa_UniformMatrix4fv>:
    1380:       48 83 ec 10             sub    $0x10,%rsp
    1384:       48 8b 05 00 00 00 00    mov    0x0(%rip),%rax        # 138b <_mesa_UniformMatrix4fv+0xb>
    138b:       41 89 f8                mov    %edi,%r8d
    138e:       41 89 f1                mov    %esi,%r9d
    1391:       0f b6 d2                movzbl %dl,%edx
    1394:       64 48 8b 38             mov    %fs:(%rax),%rdi
    1398:       48 8b b7 c8 01 02 00    mov    0x201c8(%rdi),%rsi
    139f:       48 8b 76 70             mov    0x70(%rsi),%rsi
    13a3:       68 06 14 00 00          pushq  $0x1406
    13a8:       51                      push   %rcx
    13a9:       52                      push   %rdx
    13aa:       b9 04 00 00 00          mov    $0x4,%ecx
    13af:       ba 04 00 00 00          mov    $0x4,%edx
    13b4:       e8 00 00 00 00          callq  13b9 <_mesa_UniformMatrix4fv+0x39>
    13b9:       48 83 c4 28             add    $0x28,%rsp
    13bd:       c3                      retq

After:

0000000000001360 <_mesa_UniformMatrix4fv>:
    1360:       48 83 ec 10             sub    $0x10,%rsp
    1364:       48 8b 05 00 00 00 00    mov    0x0(%rip),%rax        # 136b <_mesa_UniformMatrix4fv+0xb>
    136b:       0f b6 d2                movzbl %dl,%edx
    136e:       64 4c 8b 00             mov    %fs:(%rax),%r8
    1372:       49 8b 80 c8 01 02 00    mov    0x201c8(%r8),%rax
    1379:       68 06 14 00 00          pushq  $0x1406
    137e:       6a 04                   pushq  $0x4
    1380:       6a 04                   pushq  $0x4
    1382:       4c 8b 48 70             mov    0x70(%rax),%r9
    1386:       e8 00 00 00 00          callq  138b <_mesa_UniformMatrix4fv+0x2b>
    138b:       48 83 c4 28             add    $0x28,%rsp
    138f:       c3                      retq

Saves a measly 576 bytes of text on x64.

   text	   data	    bss	    dec	    hex	filename
6670131	 228340	  22552	6921023	 699b3f	lib/i965_dri.so before
6670131	 228340	  22552	6921023	 699b3f	lib/i965_dri.so after
6343924	 293872	  29880	6667676	 65bd9c	lib64/i965_dri.so before
6343348	 293872	  29880	6667100	 65bb5c	lib64/i965_dri.so after

v2: Rebase on GL_ARB_gpu_shader_fp64.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>