rs6000.c (rs6000_handle_altivec_attribute): Propagate all type qualifiers from...

rs6000.c (rs6000_handle_altivec_attribute): Propagate all type qualifiers from element type to vector type.

ChangeLog:

	* config/rs6000/rs6000.c (rs6000_handle_altivec_attribute): Propagate
	all type qualifiers from element type to vector type.

testsuite/ChangeLog:

	* gcc.target/powerpc/altivec-volatile.c: New test.

Co-Authored-By: Andrew Pinski <andrew_pinski@playstation.sony.com>

From-SVN: r139569