swupdate: bump git SRCREV

This includes the following changes:

887e6e4 RFC: ubi: add support for atomic volumes rename
2504d4f ubivol_handler: always consider the 'static' flag
40f90c3 ubivol_handler: use rsvd_bytes instead of data_bytes
95a2b99 archive handler: set locale for libarchive

Signed-off-by: Pierre-Jean Texier <pjtexier@koncepto.io>

recipes-support/swupdate/swupdate_git.bb

@@ -3,4 +3,4 @@ require swupdate_tools.inc
 
 DEFAULT_PREFERENCE = "-1"
 
-SRCREV ?= "d39f4b8e00ef1929545b66158e45b82ea922bf81"
+SRCREV ?= "887e6e49394b0bde7635cb1ef254c7428370cec3"