mesa: Fix DEBUG_MATH build on sparc.

Need to use '__asm__' instead of plain 'asm'.

math/m_debug_clip.c: In function ‘test_cliptest_function’:
math/m_debug_clip.c:253: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘asm’
math/m_debug_clip.c:253: warning: implicit declaration of function ‘asm’

Signed-off-by: David S. Miller <davem@davemloft.net>

src/mesa/math/m_debug_util.h

@@ -231,8 +231,8 @@ extern char *mesa_profile;
 #define  BEGIN_RACE(x)                                                        \
 x = LONG_MAX;                                                                 \
 for (cycle_i = 0; cycle_i <10; cycle_i++) {                                   \
-   register long cycle_tmp1 asm("l0");					      \
-   register long cycle_tmp2 asm("l1");					      \
+   register long cycle_tmp1 __asm__("l0");				      \
+   register long cycle_tmp2 __asm__("l1");				      \
    /* rd %tick, %l0 */							      \
    __asm__ __volatile__ (".word 0xa1410000" : "=r" (cycle_tmp1));  /*  save timestamp   */