rpm: properly forward dep flags

[bmwiedemann]

rpmds.h says:

RPMSENSE_POSTTRANS = (1 << 5),  /*!< %posttrans dependency */
RPMSENSE_PRETRANS  = (1 << 7),  /*!< Pre-transaction dependency. */
RPMSENSE_INTERP	   = (1 << 8),  /*!< Interpreter used by scriptlet. */

without this, kmp packages would differ in bit 5-8 compared to local builds
Diffs were mostly in rpm tags for /bin/sh and /bin/ldconfig

This fix was done as part of work on reproducible builds for openSUSE.

Fix was somewhat tested in https://build.opensuse.org/project/monitor/home:bmwiedemann:reproducible:pesign

pkgdiff showed for xtables-addons

comparing PROVIDES
-/bin/sh 0
-/bin/sh 1024
 /bin/sh 1280
-/bin/sh 2048
 /bin/sh 2304
 /bin/sh 288
-/bin/sh 4096
 /bin/sh 4352
 coreutils 0

[lcp]

Thanks.