[Buildroot] [PATCH] php: security bump to version 5.6.21

[Peter Korsgaard]

>>>>> "Gustavo" == Gustavo Zacarias <gustavo at zacarias.com.ar> writes:

 > Fixes (CVEs not assigned yet):
 > bug #72094 - Out of bounds heap read access in exif header processing
 > bug #71912 - libgd: signedness vulnerability
 > bug #72061 - Out-of-bounds reads in zif_grapheme_stripos with negative offset
 > bug #71843 - null ptr deref ZEND_RETURN_SPEC_CONST_HANDLER
 > bug #71952 - Corruption inside imageaffinematrixget

 > Signed-off-by: Gustavo Zacarias <gustavo at zacarias.com.ar>

Committed, thanks.

-- 
Bye, Peter Korsgaard