package/micropython: bump to version 1.5.2

Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/micropython/micropython.hash

@@ -1,2 +1,2 @@
 #locally computed
-sha256 4ba128def442275ef528c210d8d3dc6d6e12460069a570706b5fbdb6b4a6a25f  micropython-v1.5.tar.gz
+sha256 3c594ee701622f01c4e9c7abd1c322a0bc6c8af17bea0b0126812cb8e61bb5d9  micropython-v1.5.2.tar.gz

package/micropython/micropython.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-MICROPYTHON_VERSION = v1.5
+MICROPYTHON_VERSION = v1.5.2
 MICROPYTHON_SITE = $(call github,micropython,micropython,$(MICROPYTHON_VERSION))
 MICROPYTHON_LICENSE = MIT
 MICROPYTHON_LICENSE_FILES = LICENSE