sysmobts: Use 3.10.50 as default kernel

conf/machine/include/sysmobts.inc

@@ -1,7 +1,7 @@
 TARGET_ARCH = "arm"
 
 PREFERRED_PROVIDER_virtual/kernel = "linux-sysmocom"
-PREFERRED_VERSION_linux-sysmocom = "${@ dict([('1.5','3.10.40+git%'), ('1.5.1','3.10.40+git%'), ('1.5.2','3.10.40+git%'), ('1.5.3','3.10.40+git%'), ('1.1.2','')])[d.getVar('DISTRO_VERSION', True)]}"
+PREFERRED_VERSION_linux-sysmocom = "${@ dict([('1.5','3.10.50+git%'), ('1.5.1','3.10.50+git%'), ('1.5.2','3.10.50+git%'), ('1.5.3','3.10.50+git%'), ('1.1.2','')])[d.getVar('DISTRO_VERSION', True)]}"
 PREFERRED_PROVIDERS += "virtual/${TARGET_PREFIX}depmod:module-init-tools-cross"
 
 PREFERRED_VERSION_u-boot = "git"