rmv volatile from q-bit functions, 1 cycle less for clr

utility/dspinst.h

 static inline uint32_t get_q_psr(void)
 {
   uint32_t out;
-  asm volatile("mrs %0, APSR" : "=r" (out));
+  asm ("mrs %0, APSR" : "=r" (out));
   return (out & 0x8000000)>>27;
 }
 
 static inline void clr_q_psr(void)
 {
   uint32_t t;
-  asm volatile("mrs %0,APSR " : "=r" (t));
-  asm volatile("bfc %0, #27, #1" : "=r" (t));
-  asm volatile("msr APSR_nzcvq,%0" : "=r" (t)); 
+  asm ("mov %[t],#0\n"
+       "msr APSR_nzcvq,%0\n" : [t] "=&r" (t)::"cc")); 
 }
 
 #endif