use semicolon not newline for inline assembler

fixes:

testfile.c:3:11: warning: missing terminating " character
    3 |   __asm__(".arch armv5te
      |           ^
testfile.c:4:1: error: expected string literal before '.' token
    4 | .object_arch armv4t
      | ^
testfile.c:5:14: warning: missing terminating " character
    5 | qadd r3,r3,r3");
      |              ^

Signed-off-by: Rudi Heitbaum <rudi@heitbaum.com>
Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>