{hp,sp}r2: Hermitian/symmetric rank-2 update

Functions
subroutine	chpr2 (uplo, n, alpha, x, incx, y, incy, ap)
	CHPR2
subroutine	dspr2 (uplo, n, alpha, x, incx, y, incy, ap)
	DSPR2
subroutine	sspr2 (uplo, n, alpha, x, incx, y, incy, ap)
	SSPR2
subroutine	zhpr2 (uplo, n, alpha, x, incx, y, incy, ap)
	ZHPR2

Detailed Description