libdrm: Follow update of OE-Core to 2.4.49

Change-Id: If943d3f8954dccb3e25e7f4ae8ba8971d938e598
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>

Conflicts:
	recipes-graphics/drm/libdrm_2.4.46.bbappend
	recipes-graphics/drm/libdrm_2.4.47.bbappend
	recipes-graphics/drm/libdrm_2.4.49.bbappend

Signed-off-by: Khem Raj <raj.khem@gmail.com>