qatlib's and qatzip's autogen.sh have the license comment before the
shebang line. As a result, the kernel returns ENOEXEC when these
scripts are executed directly.

glibc's execvp() handles ENOEXEC by falling back to /bin/sh, while
musl's execvp() does not.
Consequently, CMake's execute_process() fails with an "Exec format
error" on musl:

  CMake Error at .../qatlib_ext-stamp/qatlib_ext-configure-RelWithDebInfo-impl.cmake:9 (message):
    Command failed (exec format error):

     './autogen.sh'

Move the shebang to the beginning of both scripts so they can be
executed directly regardless of the libc implementation.

See also:
 https://www.openwall.com/lists/musl/2020/02/12/9

--- a/src/qatlib/autogen.sh	2026-10-22 10:33:17.310734773 +0000
+++ b/src/qatlib/autogen.sh	2026-10-22 10:33:19.846777880 +0000
@@ -1,3 +1,5 @@
+#!/bin/sh
+
 #################################################################
 #
 #   BSD LICENSE
@@ -33,6 +35,4 @@
 # 
 #
 #################################################################
-#!/bin/sh
-
 autoreconf -if
--- a/src/qatzip/autogen.sh
+++ b/src/qatzip/autogen.sh
@@ -1,3 +1,5 @@
+#!/bin/sh
+
 ################################################################
 #   BSD LICENSE
 #
@@ -31,6 +33,5 @@
 #   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 ################################################################
-#!/bin/sh
 mkdir -p m4
 autoreconf -vif